Questions tagged [degraded]
Degraded refers to a fallback mode that continues to allow the usage of the storage array, but at a lower performance level.
28
questions
2
votes
1answer
67 views
DEGRADED zfs pool vs FAULTED
My backup NAS (Arch-based) reports a degraded pool. It also report a degraded disk as "repairing". I'm confused by this. Presuming that faulted is worse that degraded, should I be worried?
zpool ...
1
vote
0answers
84 views
RAID 5 virtual disk still shows up as degraded after repair
On a machine running Windows Server 2012 R2, I have a virtual disk consisting of 8 physical disks in a RAID-5 configuration. One drive died, so I replaced the dead drive and followed these ...
0
votes
1answer
635 views
Degraded volume on Synology NAS
Today my Synology NAS's OS (DSM) told me that I have a degraded volume. The advice on their site is to replace the failed drive. I've gone ahead and bought the same drive model and capacity, and it ...
0
votes
0answers
329 views
Fix Crashed/Degraded RAID when Data is intact but Disk Dropped from Array (btrfs/Synology)
The Volume on my Synology Expansion crashed and can't recover on its own.
Drive is probably OK. It happen after cleaning the device from dust. Until that time Volume
was also OK so I believe it ...
4
votes
2answers
200 views
Raid 5 Recovery Process
I just recently setup a 3 drive 4TB MDRAID 5 array for mirroring and an online backup of our server.
I am preparing for a future hardware (drive) failure and wanted to mitigate a recovery failure ...
2
votes
3answers
495 views
Two drive ZFS pool, second drive overwritten with data. How do I restore/copy data back to the second drive?
Data is intact in the first drive, second drive is "UNAVAIL". Reason for overwrite is my lack of concentration while applying dd command ...
Command
sudo zpool replace -f hgst 4596995095197485503 /...
1
vote
1answer
343 views
HP Proliant ML350 G6 SMH reporting error with Smart Array
Our HP Proliant ML350 G6 recently turned off by itself for the first time, with the "Health LED" indicating degraded state.
As soon as I pressed the power button, the LED went back to green, so after ...
1
vote
1answer
557 views
How to create degraded raid6 array using megacli
There is a server with few disks. And - a new server with PERC controller.
I would like to migrate existing data into a new server to raid6 which uses 6 disks(4+2).
Unfortunly - i don't have enought ...
2
votes
1answer
463 views
Ganeti disks degraded drbd cs:NetworkFailure
I have an instance (with 2disks) on Ganeti with both disks degraded (probably due to a connection problem?).
This instance was working correctly for many years until this morning.
On my master
$ gnt-...
1
vote
1answer
195 views
zfs zpool degraded drive missing
I have a degraded zpool called storage of 4 6TB Drives in 2 mirrors. One of the drives on the second mirror is unavailable. All cables seem to to be plugged in physically. Did my device id change?
...
0
votes
1answer
31 views
How to show degraded pool under SCVMM?
Does SCVMM show degraded pool information?
When a disk, which is part of a storage pool, goes down, therefore changing the pool status, where and how can I see this information under SCVMM?
Server ...
6
votes
1answer
8k views
How to auto-start Degraded Software RAID1 under Debian 8.0.0 on boot?
If you remove a component HDD from an array, it drops into a "busy box" shell under "(initramfs)" saying something similar to "cannot mount root device" as the RAID1 array becomes "inactive".
It is ...
1
vote
2answers
4k views
After power loss, my RAID config changed, some drives marked as foreign, but all data still there
I have a Perc 5/i in a Dell Precision 590. The controller DOES have a battery backup, and the controller reports that its status is healthy. There are five 1TB SATA drives connected to the controller. ...
2
votes
3answers
705 views
P4500 Lefthand SAN report degraded on one node when all disks are health “NORMAL”
I am experiencing a strange condition with our HP G1 lefthand SAN cluster. The cluster consists of 4 nodes across two sites, two nodes ( node 1 & 2 )in each site are RAID5 across the pair, and ...
1
vote
1answer
1k views
Mac Pro says RAID degraded but all drives showing green status
OSX 10.9 -
RAID Utility says RAID array is degraded but all drives are showing green
All started after error log
Drive 3:5000c5004e189ddf missing - Previous drive status was inuse
Now getting ...
0
votes
1answer
2k views
3ware raid controller, unit unusable, several degraded disks
I was switching the disk drives in my server, running RAID 6 on 5 disks on a 3ware 9650SE controller, for newer disks and have run into a problem.
The two first disks went fine, I took out one disk ...
5
votes
1answer
354 views
what harm can writeback caching have on a degraded disk array?
At work I administer several machines using (real) hardware raid controllers (with battery backed write caches), and these have the nasty habit of falling back to writethrough behaviour when an array ...
0
votes
1answer
115 views
Artificially degrade apache2 performance to meet real world conditions
I want to degrade my apache2 development server performance (it's on a local network) to simulate real world conditions (lag, slow connections, random timeouts...).
Is there any apache mod to do ...
5
votes
2answers
4k views
NAS device claims drive in a RAID is degraded but S.M.A.R.T. says it is fine
I have a Synology DS213 with two 600GB drives in RAID 1.
Last night the device reported that my second drive had become degraded and that I should replace it. When I ran a extensive S.M.A.R.T. test ...
10
votes
4answers
12k views
How to resolve virtual disk degraded in Windows Server 2012
I am using the new Storage Spaces feature in Windows Server 2012. I have the following disks:
FriendlyName CanPool OperationalStatus HealthStatus Usage ...
2
votes
1answer
24k views
Virtual Disk Degraded
There is a physical DC with a Raid 1 Mirror, 2 Physical Disks, 500GB each. Dell Server Administrator is installed on the DC, and is reporting both physical disks are fine, online, in a good state etc. ...
0
votes
1answer
755 views
Ubuntu server boot degraded raid
I've installed Ubuntu 12.04.1 in a new server and set up the 4 hard drives with 3 RAID 1 devices, the configuration is such that the first two drives have md0 (swap space) and md1 (/) with the third ...
1
vote
1answer
438 views
Is there a way to prevent a SW RAID 1 from degrading?
I have a number of Debian servers in a datacenter and from time to time I notice that the
software RAID 1 was degraded.
While the re-sync process starts automatically and I don't lose any data I find ...
2
votes
2answers
3k views
Raid1 degraded after every reboot
After setup, cat /proc/mdstat output looks like this:
proxmox:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sdc2[1] sdb2[0]
...
2
votes
2answers
2k views
Debian, mdadm, Degraded Array, disk became spare after re-added
Tonight i received a message generated by mdadm on my server:
This is an automatically generated mail message from mdadm
A DegradedArray event had been detected on md device /dev/md3.
Faithfully ...
5
votes
4answers
3k views
Ubuntu raid - replacing drive?
I've set up software RAID1 with the latest Ubuntu version - 11.04 using two 250GB harddrives which initially worked great. Tried to unplug both and computer still started with degraded raid status - ...
10
votes
5answers
7k views
Boot Debian while RAID array is degraded
Recently, I came across Ubuntu Server install. During install, it asked me whether or not to allow booting system from degraded RAID array (probably because I installed system onto RAID1 /dev/md0 ...
2
votes
1answer
2k views
LTO-4 tape shelf life estimation?
LTO tapes, Maxell in this case, are often marketed as having 30 years or more shelf life when stored under "optimal conditions"
Is there a way to get a good estimation to the shelf life, given ...
