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Guide To Building A Media Storage Server - Page 196

post #5851 of 7742
Quote:
Originally Posted by kapone View Post

There is no way in hell I'm building a NAS/SAN with THIS motherboard. In another project we did for a company, we did use two of these to create a redundant cluster for them, and both of them were populated with the daughter card. Each system had 8 Quad core Opterons and 64GB of RAM.

The combined cluster idled at around 600w.....

If I remember right one of the thing they target this board at is "workstations" (in addition to servers)? Talk about a space heater....
post #5852 of 7742
And from that monster motherboard to......an el cheapo P35-DS3L

- Plugged in an E2160 with 2x1GB of RAM. System idled around 64w. (This was WITH an el cheapo ATI x300 video card)
- Played with some hardware settings and disabled what I wouldn't need from a "server" perspective - Got things down to 60w.

I'd think the ATI x300 is probably eating atleast 10-15w, but I can't remove it just yet to see how the power consumption changes. However, that's one of the reasons I like this lil P35 board. It will boot just fine without a video card. And it will boot just fine with a RAID card plugged into the x16 slot, instead of a video card. And even though there's no "Wake on LAN" in the BIOS as such, it CAN wake from LAN, either by a magic packet or ANY packet (That's critical, because I need it to wake up anytime, ANYTHING is accessed from the server).

Threw Server 2008 R2 on it, tweaked a few things in it (had to grapple with enabling sleep on 2008, but finally got it setup the way I need it), and I'm amazed at the memory footprint of R2 (everytime I use it). That thing sits with only 24 processes running and about 300MB of RAM in use. And this is a full fledged server! Amazing.

The experimentation goes on...
post #5853 of 7742
Quote:
Originally Posted by kapone View Post

And from that monster motherboard to......an el cheapo P35-DS3L

- Plugged in an E2160 with 2x1GB of RAM. System idled around 64w. (This was WITH an el cheapo ATI x300 video card)
- Played with some hardware settings and disabled what I wouldn't need from a "server" perspective - Got things down to 60w.

I'd think the ATI x300 is probably eating atleast 10-15w, but I can't remove it just yet to see how the power consumption changes. However, that's one of the reasons I like this lil P35 board. It will boot just fine without a video card. And it will boot just fine with a RAID card plugged into the x16 slot, instead of a video card. And even though there's no "Wake on LAN" in the BIOS as such, it CAN wake from LAN, either by a magic packet or ANY packet (That's critical, because I need it to wake up anytime, ANYTHING is accessed from the server).

Threw Server 2008 R2 on it, tweaked a few things in it (had to grapple with enabling sleep on 2008, but finally got it setup the way I need it), and I'm amazed at the memory footprint of R2 (everytime I use it). That thing sits with only 24 processes running and about 300MB of RAM in use. And this is a full fledged server! Amazing.

The experimentation goes on...

R2 is good, best thing since Win 2000 server (First to beat it for share transfer speed )

I'm finally underway with my build, so far I have a new Tyan Pentium-M board with 2GB ram, an old mobile Celeron 410 Mobile chip and Supemicro 450W PSU I had sitting around and an Adaptec 52445 I just grabbed off Ebay. Hopefully this will all work together.
post #5854 of 7742
Final power draw on the P35-DS3L. Here's what connected to the motherboard. This is in a 2U rackmount chassis btw.

4x80mm fans @1.8w each = 7.2 watts
1x CPU fan = probably drawing another 2w
1x 2.5" 5400rpm HDD for OS
E2160 (stock for now)
2x1GB sticks
No video card
Power supply - 2U 460w power supply. I think this one is the culprit. It's not as efficient as I'd like it to be, but there's 13 drives that's gonna be connected (12 data drives, all 1.5TB drives, and one 2.5" OS drive) so, it needs a bit of juice. I may try another PSU though.

Power draw at idle = 55w.
Power draw in S3 sleep = 4w

Resume from S3 with R2 = 2 seconds, with all shares available.

Hmm...that ATI x300 really wasn't drawing as much as I thought it was.
post #5855 of 7742
Quote:
Originally Posted by mitgib View Post

Couple of quick questions. Took a couple days to get caught up on this thread, but I got a few ideas, and before jumping to any conclusion, a little counter thought might prove useful.

My current media server is WHS with an OS drive on the motherboard controller, then a 3ware 9690SA to a Chenbro CK12803 with 15 1tb drives in RAID5, I'm exporting in 2TB slices to the OS since WHS is fairly retarded about large arrays.

I'm down to 4tb of free space and at the rate I purchase Blu-Rays, expansion is not far off. I caught up on this thread to hopefully get an idea about who is selling drives cheap, well that didn't happen for me with 1tb drives, but I did get an idea about 2tb drives seem to be quickly dropping in price and per byte costs are now well under 1tb drives, so while I would need to expand to a 2nd chassis, populate it with 2tb drives, then remove the slices from the original RAID5 array, WHS would migrate the data to the new array using the 2tb drives, and rebuild/expand the original chassis with more 2tb drives and sell off the 1tb drives for whatever I can get.

Now this will keep my data intact while migrating it, but this also needs to hopefully solve an issue I've had ever since I built this box, which is that dang balancing act WHS does every hour. If it happens when I am watching a movie, the stream stutters for a short period then back to normal, if I move the data to the local node playing it, no issue, so it is deffinatly WHS. My thought was could/should I build this new array of 16 2tb drives as RAID6/10 (or 2 8 drive arrays for that matter). I'm looking for a smoother stream, and obviously more space.

I just recieved a Chenbro UEK and before I order anything else, just want to explore my options.

Quote:
Originally Posted by MiBz View Post

There's a much better way, without having to break things up into 2TB LUNs, and you'll also avoid anything to do with WHS's storage pool for Video storage.

Build your new array using 2TB drives.
Remote desktop into WHS, right click on my computer and select manage.
Select Disk Management and you'll see the new array volume which isn't initialized and shows as unallocated.

Right click on the grey area of the volume, intialize as GPT volume.
Format it NTFS |64k clusters | Assign a drive letter above D (ex: R)
Give it a name (ex: RaidStorage)
Exit from Disk Management

Go to My Computer and the R drive now appears as a drive letter.
Open it
Create a new folder, call it Movies or RaidStorage (or whatever you like)

Open the link to WHS's folder shares and right click on the Video share.
Note the share security settings for each group.
Administrators
Creator Owner
RO_5(WHS\\RO_5) - this is the group containing users with read only access
RW_5(WHS\\RW_5) - this is the group containing users with read write access.
System

Now go back to the folder you created on the array drive
Right click, select Share and set the share security to the same as Video noted above.

Now when you access WHS from any network client you will see a shared called Movies (or whatever you called it) that can be accessed same as all other shares.

The additional step to assign the same share rights and groups as WHS's Video folder means that any users you add or changes to those users you make in the WHS console that you give access to Video will also apply to this folder so you'll never need to do it manually.

Last step in remote desktop
Open the WHS shared folder's link and open the Video folder.
In my computer open the drive letter you assigned to the raid array.
Now drag/copy the movies from the WHS Video share to the raid array.

You can also temporarily do the same for all other data that's on the WHS drive pool.

Once the drive pool is empty, you can start removing each 1TB LUN from WHS's disk management, but before you do this make sure you have at least 1 1TB single drive in the drive pool that WHS can move data like client backups to when it prepares to eject the raid LUNs.

At that point you have all your video files safely on the raid array outside the WHS pool and you can still use 2,3,4 x 1TB drives (with duplication on) for your pics, music, documents and whatever else you want.

This solution sounds very interesting to me, but am a total noob regarding servers, Raid and WHS OS. I currently have a NORCO 4020 20 bay/SuperMicro MBD-X7SBE-0/2 Supermicro AOC-SAT2-MV8 8 port SATA controllers/xeon3110 cpu/2GB RAM with WHS OS. Currently 15 of the 20 bays are populated with 18TB allocated to the WHS storage pool (7.5TB free space) and- no Raid setup. Like mitgib I am trying to solve the WHS hourly disk balancing that causes stutters briefly when watching movies. Would it be possible to use the 5 empty bays I currently have to setup this separate array using 2TB HDD? Would I be able to then start removing HDDs from the D: pool and adding them to the new array? For example I would like to do this separate array for my movies collection which is currently at 9TB so if I copied these over to the new array and then offloaded several of the drives could I just remove them from the D drive and add them to the new array? Since I don't have any raid hardware could I use a software raid solution to accomplish this or could I just set it up as a JBOD? or is this even possible without purchasing more hardware? Sorry for the totally noob questions, if I should be posting elsewhere please let me know . Thanks
post #5856 of 7742
ALCON,

I'm now 2+ weeks since my early glitches with my Areca HBA and E1 chassis setup -- I've now done my 2nd raid expansion.. First expansion was adding 2 new 1TB drives to an existing 7 drive raid6 array with 3TB of existing data. The one that just completed was adding a new 2TB drive to a raid6 array of 5 2TB drives with 4.5TB of existing data.

It took a bit over 3 days to finish this expansion process via the areac and drive in the external E1 enclosure..

So far -- I'm still stable and will add another 2 TB drive next month

Currently -- I'm only using these arrays in the E1 to sync/backup my existing production arrays in my older server and backup of several WHS shares...

I actually rebooted the server during this expansion/migration to see if the process would recover and continue... it did.................

steve
post #5857 of 7742
btw, anybody need an 8 core server with 8GB RAM??

(Supermicro X7DWE, 2x E5405 Xeons, 4x2GB FB-DIMMs, 5 SATA hotswap, 4U chassis).
post #5858 of 7742
I will give it a home. Only as a favour though...
post #5859 of 7742
Quote:
Originally Posted by the_beast666 View Post

I will give it a home. Only as a favour though...

ok......wiseguy. Seriously though, I'm redoing my storage array setup, and moving to independent nodes, and won't be needing this big ass server that I built. I even have the build pictures if anybody's interested. I'll try and be as fair as possible when it comes to price. Otherwise fleabay it is.
post #5860 of 7742
Here's pictures of the server. Everything is still in the server except the RAID cards and the connector cables from the RAID cards. Will come with the matching rack rails. The DVD drive that's in there, is something I just threw in when built. If you don't like the fact it does not match the black color... I can change it out to a matching one. Comes with a 750w power supply.



















post #5861 of 7742
Quote:
Originally Posted by HTPCat View Post

This solution sounds very interesting to me, but am a total noob regarding servers, Raid and WHS OS. I currently have a NORCO 4020 20 bay/SuperMicro MBD-X7SBE-0/2 Supermicro AOC-SAT2-MV8 8 port SATA controllers/xeon3110 cpu/2GB RAM with WHS OS. Currently 15 of the 20 bays are populated with 18TB allocated to the WHS storage pool (7.5TB free space) and- no Raid setup. Like mitgib I am trying to solve the WHS hourly disk balancing that causes stutters briefly when watching movies. Would it be possible to use the 5 empty bays I currently have to setup this separate array using 2TB HDD? Would I be able to then start removing HDDs from the D: pool and adding them to the new array? For example I would like to do this separate array for my movies collection which is currently at 9TB so if I copied these over to the new array and then offloaded several of the drives could I just remove them from the D drive and add them to the new array? Since I don't have any raid hardware could I use a software raid solution to accomplish this or could I just set it up as a JBOD? or is this even possible without purchasing more hardware? Sorry for the totally noob questions, if I should be posting elsewhere please let me know . Thanks

Have you tried suspending the DEMigrator service during hours that you typically stream video? I've set up a task to start and stop the DE so that it runs from 1am to 6 am. I also start it manually if I'm planning to copy large files, as my WHS has a "favorite" drive that it tends to overload otherwise.

Here's the link to a wegotserved post about the .bat files needed. Hope this helps, and I hope the link works
post #5862 of 7742
Here the specs of my "NAS" system:

Board: Essential D945GSEJT (includes Atom N270)
Ram: 1GB
Case: PC-Q07R
HDD WD caviar green 1.5 TB (WD15EARS)
powersupply: 12V DC 80W(max)
Fan: 80mm Arctic Cooling (3Pin Molex, w/o PWM)

The system serves as fileserver, DHCP, DNS, NAT-Router/Firewall-Host, ssh-server, print server.

Power consumption is at 15-16W in idle (fully operational, drive is spinning)

Important data finds it's way to DVD-R from time to time. I didn't want RAID because that would raise consumption to over 20 Watts.

Because i live in an appartment atm, the system had to be as silent as possible. Which it is

best regards
post #5863 of 7742
Quote:
Originally Posted by HTPCat View Post

This solution sounds very interesting to me, but am a total noob regarding servers, Raid and WHS OS. I currently have a NORCO 4020 20 bay/SuperMicro MBD-X7SBE-0/2 Supermicro AOC-SAT2-MV8 8 port SATA controllers/xeon3110 cpu/2GB RAM with WHS OS. Currently 15 of the 20 bays are populated with 18TB allocated to the WHS storage pool (7.5TB free space) and- no Raid setup. Like mitgib I am trying to solve the WHS hourly disk balancing that causes stutters briefly when watching movies. Would it be possible to use the 5 empty bays I currently have to setup this separate array using 2TB HDD? Would I be able to then start removing HDDs from the D: pool and adding them to the new array? For example I would like to do this separate array for my movies collection which is currently at 9TB so if I copied these over to the new array and then offloaded several of the drives could I just remove them from the D drive and add them to the new array? Since I don't have any raid hardware could I use a software raid solution to accomplish this or could I just set it up as a JBOD? or is this even possible without purchasing more hardware? Sorry for the totally noob questions, if I should be posting elsewhere please let me know . Thanks

If you decide to go down the WHS + video on raid array route, and it's not for everyone, then you would need a hardware raid controller to setup and manage your raid array. Once the array is built and setup, you'll be able to copy data from the WHS pool over to the array and start removing drives from the pool after the files are safely on the array.
post #5864 of 7742


Just got my Tyan board, Socket 479 Core 2 Mobile / I3100 based but has dual Intel Nics, 2 X8 PCI-E Slots and takes Reg ECC DDR2.

The bios lets you adjust each C-State, force minimum Speedstep speed and voltage and couple of other odd bits and pieces. It will probably look a bit small in the Norco case I have coming.
LL
post #5865 of 7742
Quote:
Originally Posted by J_P_A View Post

Have you tried suspending the DEMigrator service during hours that you typically stream video? I've set up a task to start and stop the DE so that it runs from 1am to 6 am. I also start it manually if I'm planning to copy large files, as my WHS has a "favorite" drive that it tends to overload otherwise.

Here's the link to a wegotserved post about the .bat files needed. Hope this helps, and I hope the link works

Thanks for the link I am on my way to read this thread - this is exactly what I would like to do - Set it up so it only runs durring my sleep hours
post #5866 of 7742
Hi Guys,

I am adding the final 8 drives in my Norco 4020 case. I have not added drives since I built the server and I am not sure how to add these 8 drives into my current Raid 6 Unit on my 3Ware 9650SE-24M8 Card without losing any data.

Do I create a new unit with the 8 new drives and then migrate to my existing Raid 6 Unit?

Do I Rebuild?

A step by step guide would be really helpful please

I don't mean to ask stupid questions, but help here would be much appreciated as I do not want to lose my current data and I am out of space.


THANKS FOR THE HELP!!!
post #5867 of 7742
Thread Starter 
@Farris: I'm not familiar with that card but you should just be able to do an OCE (online capacity expansion) without losing any data. It's commonly called "Expand Array" in your raid card's management interface.

With that expensive of a raid card I think you owe it to yourself to crack the manual and get to know it a bit better since OCE is a pretty basic process and will be detailed in there.

Which O/S are you running? Depending, there will be an extra step of expanding the partition size once the array has been expanded. Basically you'll see a bunch of free space at the end of the logical disk in Windows Disk Management, and it's a simple operation to expand the partition into the free space, but differs between versions of Windows Server- in 2003 it's commandline whereas in 2008 it can be done in the diskmgmt.msc GUI itself.

I'd strongly recommend powering down the system before physically adding those 8 drives as well- regardless of the fact they're hotswap, let's face it the fit of the trays on the Norco 4020 isn't great so you don't want one of the running drives to get jarred while you're adding drives- and end up with a degraded array before you even begin the expansion. I've had it happen before.
post #5868 of 7742
Thread Starter 
Quote:
Originally Posted by stevetoney View Post

I'm now 2+ weeks since my early glitches with my Areca HBA and E1 chassis setup -- I've now done my 2nd raid expansion.. First expansion was adding 2 new 1TB drives to an existing 7 drive raid6 array with 3TB of existing data. The one that just completed was adding a new 2TB drive to a raid6 array of 5 2TB drives with 4.5TB of existing data.

I actually rebooted the server during this expansion/migration to see if the process would recover and continue... it did.................

yeah rebooting during an expansion/migration is a pretty basic feature - not all cards handle as they're supposed to though, but never had a problem with Areca 1280ML or 1680. the card is doing write-through as opposed to write-back meaning it's not caching writes and thus isn't endangered by a reboot.

for the record you don't have to wait for one expansion to complete before starting another one -- i've had up to three going at the same time for multiple arrays hosted by the same card, it actually finishes much quicker than if i do them sequentially. you might think the raid chip would be pegged during array rebuilds but its nowhere near it - at least an Areca 1680 -- the write speed of the drives tend to be the bigger bottleneck.

same goes for the "check volume" operation on the areca, a.k.a. array scrub -- it can run simultaneously for different arrays on the same card and its not a big deal.
post #5869 of 7742
Quote:
Originally Posted by gsr View Post

With the stock fan board, they work fine - there's enough room to plug them in and route them to the motherboard. But they're stiff - VERY stiff - and don't work so will if you switch to Cavediver's 3x120mm fan board. I switched to the Star Tech cables which are a lot more flexible.

Wow... quite the price jump between the Norco and the Startech cables. I just searched on the Cavediver fan board, I like the idea - is it worth it in your experience? I actually removed the stock fan board until I could find quiet 80mm fans that would work well with it. Just a P4 with 5 drives right now, heat is not a problem... yet.
post #5870 of 7742
I use Cavediver's modified fan board and it is great. Fits well, much quieter, and easy to install.
post #5871 of 7742
Ditto that, I have his fanboard also, and the noise goes from intolerable to merely annoying. But I don't have the quietest 120mm fans either. What I can say is that it is quiet enough and the temps are very good so far. Under load none of my drives exceed 29deg C.
post #5872 of 7742
Quote:
Originally Posted by FrankieFiero View Post

Wow... quite the price jump between the Norco and the Startech cables.

It is a jump, but it's worth it to get the more flexible cables - one of those "you get what you pay for" kind of things.
Quote:
Originally Posted by FrankieFiero View Post

I just searched on the Cavediver fan board, I like the idea - is it worth it in your experience?

Unless the noise of the stock fan configuration doesn't bother you, absolutely yes. My Norco system lives in the basement so it doesn't need to be silent, but the noise from the stock fan configuration could be heard on the 1st floor of the house and could be heard over the noise the furnace makes. I didn't go with the quietest fan option (intentionally) but the fans I went with move the same amount of air as the stock fans but are much quieter to the point where the sound is fine for my needs. If I were setting this up in my family room, I would have gone with quieter fans.
post #5873 of 7742
Quote:
Originally Posted by PaulKohler View Post

I use Cavediver's modified fan board and it is great. Fits well, much quieter, and easy to install.

x2 On initial power up of the fan board, I had to double check that I plugged the fans in since it was so quite.
post #5874 of 7742
I recently built a new 4220/WHS system and am extremely happy with it. I have a lot of experience with building systems, but there are two areas where I'm admitedly deficient in my knowledge.

1) Power supplies. I bought a Corsair 750hx. For the SAS backplane on the 4220, after running 4 pin molex to the bottom plane and to the fans, I'm already out of the two modular cables that come with the system. I know I can request more modular cables from Corsair, but if I went with a Sata->4pin molex adapter, would I be okay? What would be the downside of doing that?

2) CPU cooling. I replaced the 80mm fans inside the case on the fan bracket and the exhaust out the back. My CPU is a x2 Regor 250, so it is a lower temperature chip as it is. I typically don't produce much load on the WHS (I do run SageTV as an add-in, but that mainly is just disk I/O). In this case with good airflow running front to back, would passive cooling be sufficient? Those skyscraper like heatsinks would fit in the case, but would I be okay for temps? I guess for this question, you would need to know what the current temps are, but theoretically I'm curious if it seems plausible.

Anyway, based on all of the advice in this thread and over at [H], I've learned more in the last two weeks than I have in a long time. Thanks to everyone who has contributed.
post #5875 of 7742
I thought I just had to add the new drives to my current Raid 6 unit via the 3wAre managmen program?

In answer to your question I am running Server 2008.

Quote:
Originally Posted by odditory View Post

@Farris: I'm not familiar with that card but you should just be able to do an OCE (online capacity expansion) without losing any data. It's commonly called "Expand Array" in your raid card's management interface.

With that expensive of a raid card I think you owe it to yourself to crack the manual and get to know it a bit better since OCE is a pretty basic process and will be detailed in there.

Which O/S are you running? Depending, there will be an extra step of expanding the partition size once the array has been expanded. Basically you'll see a bunch of free space at the end of the logical disk in Windows Disk Management, and it's a simple operation to expand the partition into the free space, but differs between versions of Windows Server- in 2003 it's commandline whereas in 2008 it can be done in the diskmgmt.msc GUI itself.

I'd strongly recommend powering down the system before physically adding those 8 drives as well- regardless of the fact they're hotswap, let's face it the fit of the trays on the Norco 4020 isn't great so you don't want one of the running drives to get jarred while you're adding drives- and end up with a degraded array before you even begin the expansion. I've had it happen before.
post #5876 of 7742
I also wants to add my 3ware management program only gives me the options of Rebuild, Migrate or Create New Unit
post #5877 of 7742
Quote:
Originally Posted by Farris View Post

I also wants to add my 3ware management program only gives me the options of Rebuild, Migrate or Create New Unit

For whatever reason 3ware refers to OCE as RLM (raid level migration).

Usually with most controllers RLM refers to changing the raid level (ex raid 5 to raid 6).

But with 3ware they bunch both expansion and migration into the same category under RLM.

Here's some RLM documentation on the 9650SE that you'll find helpful. Follow the instructions for Expanding Unit Capacity. Be sure to backup any critical data to an external disk just in case.

Once that's all done, expanding the volume partition in Win2008 is quite easy and intuitive within 2008's Disk Management gui.
post #5878 of 7742
Quote:
Originally Posted by ohpleaseno View Post

I recently built a new 4220/WHS system and am extremely happy with it. I have a lot of experience with building systems, but there are two areas where I'm admitedly deficient in my knowledge.

1) Power supplies. I bought a Corsair 750hx. For the SAS backplane on the 4220, after running 4 pin molex to the bottom plane and to the fans, I'm already out of the two modular cables that come with the system. I know I can request more modular cables from Corsair, but if I went with a Sata->4pin molex adapter, would I be okay? What would be the downside of doing that?

2) CPU cooling. I replaced the 80mm fans inside the case on the fan bracket and the exhaust out the back. My CPU is a x2 Regor 250, so it is a lower temperature chip as it is. I typically don't produce much load on the WHS (I do run SageTV as an add-in, but that mainly is just disk I/O). In this case with good airflow running front to back, would passive cooling be sufficient? Those skyscraper like heatsinks would fit in the case, but would I be okay for temps? I guess for this question, you would need to know what the current temps are, but theoretically I'm curious if it seems plausible.

Anyway, based on all of the advice in this thread and over at [H], I've learned more in the last two weeks than I have in a long time. Thanks to everyone who has contributed.

1. The main disadvantage is that you have to use adapters - more connections = more places where things can go wrong.

You also risk not being able use all the capacity of your psu. If your psu is multi-railed (or pseudo-multi-rail as with your Corsair), you could trip the overcurrent protection if you run everything from a single modular cable. The capacity for the other rails (or from the main rail that cannot be used because of the overcurrent protection on each set of wires) cannot be used. This shouldn't really be an issue for you, as you should be able to run a lot of drives from a single cable (especially with staggered spin-up). In fact on the Norco's I believe you only need to connect one of the cables per backplane anyway - although both is a good idea. But if you can get the proper wires from Corsair you might as well - if nothing else they are free and will make your cabling neat and more reliable.

2. You can definately run a cpu such as that passive. In fact servers generally run with the cpus passive anyway - although they do have to use fancy ducting a BIG fans to do so. The reason is because you remove a single point of failure - if your cpu fan dies, you cpu is likely to be toast. But with hurricane cooling and passive heatsinks you can lose 1 or more fans without compromising on the processor cooling. If your airflow is a little lower, just make sure you get a large but relatively open-finned heatsink (Ninja or similar) and you will be fine.
post #5879 of 7742
Quote:
Originally Posted by the_beast666 View Post

1. The main disadvantage is that you have to use adapters - more connections = more places where things can go wrong.

You also risk not being able use all the capacity of your psu. If your psu is multi-railed (or pseudo-multi-rail as with your Corsair), you could trip the overcurrent protection if you run everything from a single modular cable. The capacity for the other rails (or from the main rail that cannot be used because of the overcurrent protection on each set of wires) cannot be used. This shouldn't really be an issue for you, as you should be able to run a lot of drives from a single cable (especially with staggered spin-up). In fact on the Norco's I believe you only need to connect one of the cables per backplane anyway - although both is a good idea. But if you can get the proper wires from Corsair you might as well - if nothing else they are free and will make your cabling neat and more reliable.

See, I've never understood the rail thing. On the Norco, how does that relate to multiple plug terminations on the modular cable. How many could I plug from one cable into multiple backplances in the case? For instance, if there are 4 molex terminations on one cable, how many of those can I get away with plugging in to one of the five backplanes that is feeding 4 drives each?
post #5880 of 7742
That depends on the psu and how everything is connected I'm afraid. IIRC each set of wires out of the psu should be limited to something like 18A - which would allow around 6-8 HDDs to spin up without issue. However many manufacturers don't stick to the specs. Some don't even limit the current on each set of wires, and just limit the overall output for each voltage. It is possible you could run everything easily off a single set of cables from your psu (using adapters and staggered spin-up), but I wouldn't recommend it...
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