February 13, 20224 yr Hey big hard drives are not cheap in my country so I'm having a good chance that a friend is bringing me one from Europe. So, my array is: Parity 1x 16TB Data: 5x 8TB 2 of those 8TB already shows Reported uncorrect 4 and another one 8 but doing a SMART extended self-test completes without error. So, basically I have 3 questions: 1. Should I replace one of those 8TB with a 16TB one or can I just add the 16TB into the array for more space? 2. IF one of those drives die, and let's say I have 10TB free on this 16TB one. Can I recover the data into this disk and just remove the old drive from the array? Or is this a bad pratice? 3. I think this is correct to assume but, it's ok to replace a 8TB with a 16TB one, as long as it is smaller than the parity drive. Correct?
February 13, 20224 yr Community Expert 2. You could copy the data from the emulated disk onto other disks in the array, then shrink the array by rebuilding parity without the failed disk. 3. Correct
February 13, 20224 yr Community Expert 1. Depending on how many disks you have a license for, an additional disk could require a license upgrade. Each additional disk requires more ports and more power. Each additional disk is an additional point of failure.
February 13, 20224 yr Community Expert 44 minutes ago, TheFreemancer said: 2 of those 8TB already shows Reported uncorrect 4 and another one 8 Any WD disks should also monitor SMART attributes 1 and 200
February 14, 20224 yr Author 35 minutes ago, trurl said: Any WD disks should also monitor SMART attributes 1 and 200 One of those is WD. I don't see 200, only 199. 1 is Raw read error rate which is zero. and 199 which is UDMA CRC error count that is 5 and this happened when I swapped the sata cable. This value is like that for a few months now.
February 14, 20224 yr Community Expert 8 minutes ago, TheFreemancer said: UDMA CRC These are connection problems not disk problems. As long as they aren't increasing frequently it is OK, and if it is, you need to fix the connection problem. You can click on the SMART warning on the Dashboard page and acknowledge it, then it will warn again if any increase. Do you have Notifications setup to alert you immediately by email or other agent as soon as a problem is detected?
February 14, 20224 yr Author 2 minutes ago, trurl said: Do you have Notifications setup to alert you immediately by email or other agent as soon as a problem is detected? I don't. I actually keep the unraid tab open and look at it a few times a day since I work from my PC.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.