Morning, i am taking over the repair of a TS-2483xu-rp with 2 failing SSD PCIE drives, slots1 and slot2. Today is the 1st i’ve seen of this SAN and just reading and learning about these. I have a question into the ADMIN to see if these are Raid 0 or Raid 1, assuming that this is possible. Assuming that they are mirrored, I would think we shutdown SAN, replace 1 SSD, power up and let rebuild, and then power down again and replace the other. Is this correct? thanks
These are NAS units.
If both NVMe drives are faulty, there is nothing to rebuild. No matter if RAID1 or RAID0.
The OS is distributed among all drives, so as long all data on the NVMe is backed up, you can just swap both
I’ve been looking for manuals or anything to educate me with on this but not a lot a stuff to find. So these 2 drives are not OS drives, but I did see somewhere that they are for caching? So i guess we flush the cache with the GUI, replace the 2 drives and away we go?
If these were cache drives and are now faulty, you will have a problem.
If it was read cache, contact QNAP support to unlock your cached volumes after cache removal.
If it was read/write cache, you need to kill the storage and start it all fresh, restore from backups
Thanks for sticking with me dolbyman as I am just learning about the QNAP and appreciate all help. So i am told by the ADMIN that these 2 drives are raid 1 used for cache and are disable until they are replaced. maybe he knows more about his QNAP then i think he does and is expecting one of these outcomes but I would like to know what Im talking about before I talk with him. Me learning this product in 2 hours is tough.lol
If the cache was successfully destaged and disabled, then you should be able to remove the drives, as they would be marked “free” (Maybe post some screenshots of your disk overview, so we can confirm)
That is the overview of a disk (with 0 lifetime remaining, but no problem…yet)
I am talking about the overview (the look can be different depending on OS and OS version used.. both not known)
Here a demo of what it looks like in a TS-853BU running 5.2.7.3297
6xData and 2xQtier SSD (showing all up as ‘data’), disabled cache should show up as ‘free’
Do you have administrator privileges for the NAS? You need admin rights to perform the full range of operations.
Additionally, if you need to replace the PCIe SSD, please ensure the cache has been disabled first.
Thanks!
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Hi i think I have a plan for the PCIE m.2 cache SSD replacements. go to storage and snapshots. Disable/remove the cache so that when the system boots, it will not look for those 2 m.2. Shutdown system, replace the 2 m.2 ssd. power up and recreate the cache. I hope this is correct.
So the cache has NOT been disabled yet? ( still waiting for screenshots)