TS-431 failed disk

English Storage
1

My old NAS (4.3.6-2805) with four WD5000AZLX disks has a failed disk. I have four WDS100T3B0A disks coming. What is the best way to replace all of the old spinning disks with the new SSDs?

2

Only use NAS rated disks in a NAS, WD Blue are NOT NAS rated disks. (and the Blue SSD also do not have the best TBW, bad idea in a heavily used NAS)

Switching HDD with SSD is also not a good idea as features like TRIM would be missing (QTS does not recognize the change without a full reinstall of the storage system)

So kill the NAS, replace all disks and restore your data from backups

3

What about switching from m.2 to SSD? do you lose any features? My primary raid group is raid1 on M.2 in my TVS-h1688x. I am thinking to migrate to SSD’s and then to raid5. Any issues?

4

If you use QuTS on the 1688X, then you cannot move from RAID1 to RAID5 (ZFS won’t let you migrate levels)

5

Sorry, I am QTS.

6

On QTS, md_checker makes a distinction between SATA bays and NVMe bays, so I don’t know if you can rebuild across busses (maybe manually by force)

7

So far, it let me use SSD as a hot spare for M.2 raid1 group.

8

As I remember normally from QTS UI, it will prevent you from selecting SSD and HDD into the same RAID group. So the SSD from NVMe shall not able to join an existing HDD RAID.

9

So even though it says SSD is a hot spare for M.2 raid group, it will fail when I actually need it?

10

I think there’s a mis-match of terms here.

@HanzSung says QTS will prevent you from selecting SSD and HDD in the same RAID group.

@Franklin is asking if an SSD in the drive bays and be a hot spare for the M.2 SSD.

One person is talking about mixing SSD and HDD. The other is talking SSD and SSD…

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11

Thanks for noticing.

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12

The HCL seems full of disks that aren’t available any more. What is an inexpensive supported disk at least 500Gb (no reason to go past 1TB, and this is a VERY lightly used NAS, I do not need “professional” quality disks, the ones I have have worked for 10+ years) I can easily buy and swap in?

13

Well SMR disks should be avoided as they do the ‘splits’ and die (or get kicked out) when a RAID is rebuild. So a NAS rated disk is still the way to go.

Smallest drives would probably be 1TB WD RED Plus or Ironwolf
e.g.

Your IP places you in the US, so I would check amazon (Ironwolf 4TB start at 99 bucks)

14

Look closely at the pricing. These days you may find a larger drive is actually cheaper even if you don’t need the extra space.

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