First of all, are you guys experimenting using SATA drives or IDE?
For some background info on the drive upgrade:
Apparently WD Green 1TB drive reportedly works well and the maximum recognized size is 1TB.
Drive should be formatted externally (using eSATA port) and then installed internally, which avoids the firmware limiting larger drives to 160GB when formatted internally.
My goal is for each TV in our house (2) to have its own DVR with upgraded storage (1TB).
Have been working gradually towards this for almost a month.
We already rent a DCT6416-III ($15 monthly).
Inquired with cable provider about enabling the DVR Expander (i.e. eSATA port), but have yet to confirm if it is working.
I sourced a second unit from ebay and recently got it activated.
Looking for another DVR (preferably same model) so I can ditch the monthly rental fee.
I purchased a pair of 1TB SATA drives (WD Green 3.5" model WD10EARS) for the upgrades.
Using latest version of Western Digital DLG (Data LifeGuard) Diagnostic software,
completed Extended Test and Write Zeros to Drive for both drives.
I expect the remaining parts to arrive in the mail this week... 4.5mm security bit and appopriate drive cable (eSATA to SATA).
I have read that the drive format process does not take very long.
With the drives tested and zeroed, a drive image should compress quite well (small size).
My plan is to save an image of the newly formatted drive using either Clonezilla or g4u, as these do sector-to-sector copying and should be free to duplicate.
Original drive to be set aside at least initially. The saved image written to the second drive and installed into the DVR should prove that the plan works.
If my DVR's eSATA port cannot be activated then I will get one of the drives formatted at my brother's house (he has a DCT3416 and his provider is Shaw, which supposedly enables the eSATA ports by default). Somehow I will eventually get this to work!Image using either Clonezilla or g4u:
- For unsupported file system, sector-to-sector copy is done by dd in Clonezilla
- One of the questions arising a lot is "what filesystems does g4u support". The answer is: "all of them". g4u reads the disk bit by bit, starting from byte #0 to the end. It includes any MBR, boot record, partition table and the partitions themselves without further investigating the structure of the data stored in these partitions.
- clonezilla uses gzip compression by default
- g4u images uploaded to the FTP server are compressed with "gzip -9". This saves as much disk space as possible, but also takes a long time - several hours are not uncommon.