I have QNap TS-453E. Currently it contains 2 HDD in Raid 1:
Is it possible to add do next steps:
without loosing data? Is this way supported?
Yes, that should be possible but:
I am using Storage pool with thick volume. Does it mean, that I should resize each volume (for each drive) and after that expand pool ?
There is no volumes on each drive, the drives are in a RAID.
It means if you increase the pool size, it will not automatically change your volume size.
I am a bit confused here. According to this screenshot in storage pool I have volumes. I created them on the purpose, as I need different approaches related to snapshot creation for them. Maybe you understand something else by this.
That’s why I said that many people get confused.
When you add disks to, or swap disks out of your RAID, you have to look at the pool (the level above the volumes) , marked in your case with “Storage Pool 1”, here you add disks and/or increase the size of the pool
P.S. it looks like you are using cache, make sure you have good backups, as … cache is prone to fail (even more so when used on single disks) and will result in reduced speeds (on QTS) due to bad destaging of dirty blocks.
I am using pure read-only cache, so I assume that will not increase risks for data in pool. Just for getting incorrect data from outside. Which is not so important in my case.
It sadly does, as even a busted read only cache will make you lose access to your data. (for failed read cache you can ask support to fix it for you though)
Is it not possible to just remove caching and deattach broken SSD? Will it help?
Once the cache disk is broken , you cannot remove it with normal means.
I would say, remove your cache, at least until you got your RAID conversion and disk swaps done.
Are you currently using an M.2 SSD in your NAS?
