What's the difference between HD103UJ and HD103SJ?
I have a RAID5 array comprising four of these drives which are now apparently discontinued, and one has failed - will the current HD103SJ work as a direct replacement? The array is a Buffalo Terastation Pro.
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Jan 24, 2013 - ... I can clearly see the hard drive with issues because there are amber lights ... PE2950 E1810 HDD Fault ... With 6 physical disks on a PERC 6, you could have a RAID 5, 6, ... 1) "RAID 5 Logical Volume 0"... so yes, RAID5 Smiley Happy ... errors as Texican ("Drive Fault - Assert" and "Critical Array - Assert").
I'm going to go out on a limb and assume that you don't have a good backup of the data on your RAID array. So, generally speaking, the operating system is probably installed on a separate disk from your raid array (not a guarantee). But if this is so then you should be able to reinstall your operating system and drivers (esp RAID controller) to that (separate) disk and you're off to the races (replace this system disk if necessary). -OR- Depending on the make of your RAID controller you may be able to transplant your RAID controller into another machine and all the original drives along with it, so long as it has a battery backup and you place all the drives in their original order. If there is no battery backup on your RAID controller then DON'T PULL THE PLUG ON THE ORIGINAL MACHINE AND DON'T EVEN CONSIDER removing the RAID controller in any way. If you have any doubts, whatsoever, have someone with experience in RAID arrays do the work for you. It will be well worth it! (RAID arrays aren't for the faint of heart)...
Try doing a system restore, if that does not work. Check The cable that connects motherboard to Hard drive, it's a bad cable, or a bad broken Hard drive on your hands.
Take out the hard drive.
At the back of the hard drive you will find a jumper. pull it out and change the location or put it at the end.
connect the hard drive and check.
As a rule of thumb, a raid 5 array can be expanded to include additional drives. This is done during the boot process and then going into your RAID controller setup. You would then go into the RAID configuration and add the new drive to the array. This was the simplified explanation but i think you get the idea.
Things to consider,
DO NOT remove the RAID array unless you dont care about losing data.
DO NOT try to add a smaller drive than what is currently part of the array.
When possible, the new drive should be identical to the existing drives, but I have added same size, same speed more than once and it will work.
All of the drives you want as part of the array must be on the same controller.
If tou can find it in booting time on bios screen, Just goto,,, start>control panel>Administrative Tools>Computer Management>storage>disk management. You should see the new drive. Click on it and try import foreign disk . it should bring the disk. try making new oartitions there.
Are you able to get into the array configuration and make sure the logical drive is still intact? If the logical drive is gone, then your partition may be lost. If you are able to recover the logical drive in your array (which you should be able to if the RAID5 striping was stable) then you should be able to recover your data. You can get into the array configuration during the boot up sequence.
I beleave RAID5 needs all 3 disks to be present and maybe even on the same channels as they where set up for really id depends on the capability of your software or hard card. Good Luck!
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