automatic RAID 5 recovery after disk failure in old TS 659?

Questions about SNMP, Power, System, Logs, disk, & RAID.
MichaelS2
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by MichaelS2 » Wed Sep 16, 2020 4:02 am

meanwhile I formated the existing partitions 2 and 3 on the disk to EXT3 with DiskGenius. (Earlier Primary 0 was EXT3, Primary 1 was 'Linux Swap', Pimary 2 und Primary 3 were unformatted)

now it looks likes this:
HD6.jpg
should this also work?
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dolbyman
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by dolbyman » Wed Sep 16, 2020 4:12 am

as said before .. use diskpart to clear ALL partitions from the disk

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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by P3R » Wed Sep 16, 2020 4:18 am

dolbyman is giving you excellent advice, please listen to and try to follow that instead of trying other things.
RAID have never ever been a replacement for backups. Without backups on a different system (preferably placed at another site), you will eventually lose data!

A non-RAID configuration (including RAID 0, which isn't really RAID) with a backup on a separate media protects your data far better than any RAID-volume without backup.

All data storage consists of both the primary storage and the backups. It's your money and your data, spend the storage budget wisely or pay with your data!

MichaelS2
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by MichaelS2 » Wed Sep 16, 2020 4:58 am

OK. done.

thank you.

now - just re insert the cleaned disk in the old TS 659 disk array?

dolbyman
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by dolbyman » Wed Sep 16, 2020 5:11 am

yes....see if the rebuild starts now

MichaelS2
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by MichaelS2 » Wed Sep 16, 2020 12:53 pm

thank yoiu.

log files indicate that rebuidling started but was abandonded later due to errors:

2020-09-16 07:24:33 System 127.0.0.1 localhost [RAID5 Disk Volume: Drive 1 2 3 4 5 6] Rebuilding skipped.
2020-09-16 07:24:14 System 127.0.0.1 localhost [RAID5 Disk Volume: Drive 1 2 3 4 5 6] Start rebuilding.
2020-09-16 07:24:13 System 127.0.0.1 localhost [RAID5 Disk Volume: Drive 1 2 3 4 5 6] Rebuilding skipped.
2020-09-16 07:22:56 System 127.0.0.1 localhost Default share Multimedia is not found. TwonkyMedia start failed.
2020-09-16 07:22:55 System 127.0.0.1 localhost [RAID5 Disk Volume: Drive 1 2 3 4 5 6] Mount the file system read-only failure.
2020-09-16 07:17:54 System 127.0.0.1 localhost [RAID5 Disk Volume: Drive 1 2 3 4 5 6] Error occurred while accessing the devices of the volume in degraded mode.
2020-09-16 07:16:19 System 127.0.0.1 localhost [RAID5 Disk Volume: Drive 1 2 3 4 5 6] Error occurred while accessing Drive 1.
2020-09-16 00:39:14 System 127.0.0.1 localhost [RAID5 Disk Volume: Drive 1 2 3 4 5 6] Start rebuilding.
2020-09-16 00:38:27 System 127.0.0.1 localhost [RAID5 Disk Volume: Drive 1 2 3 4 5 6] Drive 3 added into volume 1.
2020-09-16 00:35:30 System 127.0.0.1 localhost Drive 3 plugged in.

RAID management also does not look correct from my point of views?
Current Disk Volume Configuration
Volume Total Size Bitmap Status Description
RAID 5 Disk Volume: Drive 1 2 3 4 5 6-- No Unmounted Unlocked No operation can be executed for this drive configuration.

putty does not deliver back results now:
[~] # cat proc/mdstat
cat: proc/mdstat: No such file or directory

what to do?

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OneCD
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by OneCD » Wed Sep 16, 2020 1:51 pm

MichaelS2 wrote:
Wed Sep 16, 2020 12:53 pm
putty does not deliver back results now:
[~] # cat proc/mdstat
cat: proc/mdstat: No such file or directory
Your syntax is not-quite-right. Try this:

Code: Select all

cat /proc/mdstat

ImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImageImage

MichaelS2
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by MichaelS2 » Wed Sep 16, 2020 6:13 pm

I do not see any difference in the syntax? (and I am not at home know and may not yet try differently)

additionally - does the content from the logs and the RAID management not show significant problems/errors?

P3R
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by P3R » Wed Sep 16, 2020 6:41 pm

MichaelS2 wrote:
Wed Sep 16, 2020 6:13 pm
I do not see any difference in the syntax? (and I am not at home know and may not yet try differently)
You missed the slash "/" before proc.

You did:

Code: Select all

cat proc/mdstat
You need:

Code: Select all

cat /proc/mdstat
additionally - does the content from the logs and the RAID management not show significant problems/errors?
It tell us that disk 1 probably have a problem. As a RAID 5 can only handle one faulty disk at a time it's time to prepare yourself mentally for that a storage reinitialization and restore from backups may be your only option.
RAID have never ever been a replacement for backups. Without backups on a different system (preferably placed at another site), you will eventually lose data!

A non-RAID configuration (including RAID 0, which isn't really RAID) with a backup on a separate media protects your data far better than any RAID-volume without backup.

All data storage consists of both the primary storage and the backups. It's your money and your data, spend the storage budget wisely or pay with your data!

MichaelS2
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Joined: Mon Sep 07, 2020 5:45 pm

Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by MichaelS2 » Wed Sep 16, 2020 7:42 pm

As a RAID 5 can only handle one faulty disk at a time it's time to prepare yourself mentally for that a storage reinitialization and restore from backups may be your only option.
thank you.

re mentally prepare: I already evaluate options for purchasing a new NAS instead of the 9-10 year old one.

my current favorite is the TS-H886.

P3R
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by P3R » Wed Sep 16, 2020 9:24 pm

MichaelS2 wrote:
Wed Sep 16, 2020 7:42 pm
re mentally prepare: I already evaluate options for purchasing a new NAS instead of the 9-10 year old one.
Then I recommend that you go for NAS or Enterprise disks in that one. WD Black are not bad disks but they're intended for desktop usage and not ideal for NAS/RAID applications. Check out the compatibility list and then ask here in the forum before buying new disks.
RAID have never ever been a replacement for backups. Without backups on a different system (preferably placed at another site), you will eventually lose data!

A non-RAID configuration (including RAID 0, which isn't really RAID) with a backup on a separate media protects your data far better than any RAID-volume without backup.

All data storage consists of both the primary storage and the backups. It's your money and your data, spend the storage budget wisely or pay with your data!

MichaelS2
Starting out
Posts: 37
Joined: Mon Sep 07, 2020 5:45 pm

Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by MichaelS2 » Wed Sep 16, 2020 10:01 pm

OK. understood. the WD Black were selected and distributed by the old QNAS NAP distributor.

MichaelS2
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by MichaelS2 » Wed Sep 16, 2020 10:09 pm

...QNAS NAS distributor...

MichaelS2
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by MichaelS2 » Thu Sep 17, 2020 1:03 pm

current mdstat:

[~] # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
md0 : active (read-only) raid5 sdc3[6] sda3[0] sdf3[5] sde3[4] sdd3[3] sdb3[1]
9759728000 blocks level 5, 64k chunk, algorithm 2 [6/5] [UU_UUU]

md6 : active raid1 sdc2[2](S) sdf2[3](S) sde2[4](S) sdd2[5](S) sdb2[1] sda2[0]
530048 blocks [2/2] [UU]

md13 : active raid1 sdc4[3](S) sda4[0] sdd4[2] sde4[4](S) sdf4[5](S) sdb4[1]
458880 blocks [3/3] [UUU]
bitmap: 0/57 pages [0KB], 4KB chunk

md9 : active raid1 sdc1[2] sda1[0] sdf1[5] sde1[4] sdd1[3] sdb1[1]
530048 blocks [6/6] [UUUUUU]
bitmap: 2/65 pages [8KB], 4KB chunk

unused devices: <none>
[~] #

hints/opinions?

dolbyman
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Re: automatic RAID 5 recovery after disk failure in old TS 659?

Post by dolbyman » Thu Sep 17, 2020 9:12 pm

I thought we established that you had two drives fail in a raid5

there is no path to go here

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