All Questions
Tagged with hard-drive raid
363 questions
1
vote
0
answers
84
views
Drive failures on Lenovo ThinkSystem SR590 and why its a "Withdrawn Product"?
our small data center faces 1 or 2 drive (SSD, SATA & SAS) failures every year in RAID-1 and RAID-5 setup on Lenovo ThinkSystem SR590 servers.
Today while I was searching the internet about the ...
- 11
5
votes
4
answers
1k
views
Are RAID controllers blind to partition tables on individual disks?
I'm curious how the concept of partitions (and partition tables) co-exist with the concept of RAID arrays. Here is my current understanding (correct me if I'm wrong anywhere):
A physical hard-drive ...
- 185
0
votes
1
answer
160
views
Upgrade HDD to SSD - RAID 1
I will upgrade a RAID 1 with 2 HDDs to a RAID 1 with 2 SSDs on a Dell T420 server (PERC H310).
But first I'd like to make some tests with a new OS installation on this new RAID 1 with SSDs.
Can I take ...
- 13
6
votes
3
answers
2k
views
Can I make md (Linux software RAID) more fault tolerant?
I have a particular hard drive in a RAID 1 mirror that gets failed out under heavy load, typically, when I run a full backup.
There is nothing wrong with the drive. Ok, it is getting one error when ...
- 4,696
0
votes
0
answers
592
views
Converting partition from basic to dynamic in Windows Server 2022 gives security error
The server has 2 1 TB SSD drives, meant to be in RAID1 on the OS level, using Windows Disk Management, or Diskpart.
We have over one hundred of servers with this configuration which were installed ...
- 1
0
votes
1
answer
86
views
Penguin server won't boot after swapping failed hard drive in RAID 6
So I have a Penguin Relion 1900 1U rack mounted server running CentOS 7 that recently had a hard disk failure. It had 4 hard drives configured in RAID 6. To replace the failed HDD, I powered off the ...
1
vote
0
answers
602
views
Disk performance issues exclusively with RAID 10 (LVM RAID)
For some reason, I am suffering very poor disk performance on RAID 10, but normal performance on RAID 5.
For context, I have 4 x 1 TB hard drives in a server. They are the physical volumes within the ...
- 111
0
votes
3
answers
925
views
HP Raid Controller p420i 18TB disk support on DL380 Gen8?
I have some 18TB Seagate Disks on a DL380 Gen8 HP server with p420i raid controller, with 2GB cache module.
I have created a RAID5 with 16TB disks but with 18TB disks, all disks are recognized but ...
- 91
-1
votes
2
answers
725
views
Which RAID is best for private use of NAS [closed]
I want to buy the DS 920+ with (4x)6TB Seagate IronWolf NAS HDD.
I definitely want some reliability. I obviously don't want to lose any data which is stored on the NAS.
Which RAID would be the best?
I ...
- 17
0
votes
0
answers
101
views
Added wrong drive to raid1 via mdadm, partition recovery
My raid is functioning fine, but I accidentally added a USB drive to what is a sata RAID1 with mdadm.
I noticed this pretty quickly and removed the drive from raid, it was synced about half a percent. ...
0
votes
2
answers
1k
views
Acessing HP Disk Array from Linux
I have some old HP Proliant GL5 with HP P400i array controllers that I want to put to some use.
In a small test I have booted with Archlinux, and it was able to list the array card and network ...
- 109
0
votes
1
answer
154
views
How to remove a Raid 1 subgroup from a Raid 10 array?
I have a RAID 10 array with 3 subgroups of drives in RAID 1, like in the image below
Raid 10
Is it possible to remove an entire subgroup (2 disks) without losing the entire Array? The RAID 10 will ...
-1
votes
1
answer
71
views
Can RAID be accidentally configured twice?
I am renting a server from Hetzner, which had 2x 8TB disks. I believe they were listed as RAID 1 (though can't find anything to confirm that anymore), which I would have assumed would have given me 16 ...
- 113
1
vote
1
answer
2k
views
Operation not allowed when running `sudo storcli /c0 /e252 /s1 set good`
I have a server with a LSI card running with RAID5. Recently the card sounded an alarm and it seems there is a problem with one of the drives.
----------------------------------------------------------...
- 111
-1
votes
1
answer
66
views
RAID + how to manipulate the disk size with RAID controller
We have 3 Hadoop HDFS servers on DELL HW physical machines , when all servers are with RHEL 7.2 version
Each server include 3 HDFS disks when each disk is 1TB
Now we want to do add another 3 Hadoop ...
- 709
0
votes
1
answer
2k
views
Unable to rebuild the Raid 1 Array (intel RST Raid 1) in BIOS and in OS(Ubuntu server 20.04.4)
we have HP server HP ProLiant ML10 Gen 9 with Ubuntu 20.04.4 LTS. We have enabled Raid 1 array for two HDD sized 2TB using Intel RST Raid configuration (which is an fake/firmware raid). Now my goal is ...
- 31
0
votes
1
answer
230
views
Is it best to have the OS on a separate virtual disk?
I have a server with 8 drive bays, and I have eight 4TB drives. Would it be best to do one RAID10 with all drives, or one RAID1 with two drives and then a RAID10 with the remaining six so that the ...
- 21
0
votes
1
answer
2k
views
Software RAID Options Combining Internal SATA & External USB?
BACKGROUND
I currently use a hybrid server-workstation setup for my primary workstation. Basically, just a Fedora base running Linux KVM, on which I then containerize a couple Linux flavors & a ...
0
votes
1
answer
1k
views
Remove Missing Drives from ZFS Pool
After an embarrassing session trying to replace a disk in my ZFS pool, I have a bunch of entries representing disks that are no longer present in the system:
NAME STATE READ ...
2
votes
0
answers
142
views
How to restore RAID1 configuration with 2 different HardDrives in CentOS-7
We have a server (HP ProLiant ML10 Gen 9) that came with Two Identical Hard disks. It was assumed that the server supports hardware RAID 1 (Mirror), and the CentOS-7 was installed in it. But later we ...
- 31
2
votes
1
answer
386
views
RAID controller detecting SSD as foreign after every reboot
My server, an R610, has been detecting my SSD as foreign after every reboot. It has a PERC 6/i RAID controller, but there's no actual RAID stuff (I just have all the drives as their own VDs).
This had ...
- 92
1
vote
2
answers
3k
views
mdadm - cant read superblock - can I zero the superblocks without erasing data and recreate a raid?
Today I had to fix a Server Fan by disassembling and rebuild it. After booting the server I had the problem that all disks where not at the same location they have been yesterday. So the system ...
- 11
0
votes
1
answer
103
views
Recover Linux RAID1 - FAT32 but shows ext2, can't assemble, but shows backup superblocks...I am STUCK
I have 2 physical disks in linux RAID1, I am not sure what happened, I think someone who should not have been in the system partitioned the md0 by mistake while the system was running while trying to ...
- 1
0
votes
0
answers
930
views
How do I measure the read/write speed of a hard drive in a RAID5 array?
I have created a 3-drive Linux RAID5 (md) array out of brand new Seagate Barracuda drives. I can measure the performance of the whole array by using: ioping -s 8k -c 10 -D -W ., where the current ...
- 141
-1
votes
1
answer
425
views
Is it possible to "undo" a raid1 configuration
How can I reconfigure a raid1 so that it is not raid1 anymore and without loss of data? I do not want raid.
I find myself with a server with predefined images that have a software raid1 setup. My ...
- 160
0
votes
0
answers
104
views
Single-disk array full: how to add a spare disk without losing data?
So I rent this server from Hetzner and it was labeled as 2x512gb nvme ssd. Indeed, the server contains two 512 gb nvme ssd but (my fault) I noticed only later that they were in some sort of software ...
- 105
2
votes
2
answers
901
views
On a Proliant DL380 G7, how can I identify which drive in the RAID is making a clicking sound?
I have 8 drives in the Proliant G7, and when under disk load there is a clicking sound from one of them.
There are NO SMART ERROR MESSAGES.
It is running ESXi, which shows warnings about i/o latency ...
-2
votes
1
answer
23
views
Is my double disk failure stochastic or indicates a systemic issue?
I'm running a home server on an aging N54L Proliant Microserver. 6 months ago, it had the following disks:
sda SanDisk_SDSSDP064G (64G SSD) (boot)
sdb WDC_WD30EZRX (WDC Green 3TB HDD) (RAID-1)
sdc ...
- 137
0
votes
1
answer
229
views
Partition of mdadm raid0 array passed through to win10 20H2 via virto driver is suddenly lost. How can I figure out why?
I have checked the logs. System has been working for a month then suddenly they could not see the drive on network. It is a linux file server with a virtual windows on top of it ... Virtual windows ...
- 676
2
votes
1
answer
590
views
About IOPS of a RAID5 disk array without cache
we are using a 530-8i RAID adapter,which is none-cache supported, on a Lenovo ThinkSystem SR590 server.And we have 4 HDD(600GB/10K RPM/SAS) in the array.
I read an article about calculating the disk/...
- 21
0
votes
1
answer
149
views
highpoint rr62x RAID 5 status disable, recover saying parameter error
I have been using a Highpoint rr62x controller(BIOS version 1.3) for about a decade now. The RAID-5 volume is containing 4 disks-each 3TB.
For the last five years my RAID has been disabled. I have ...
2
votes
1
answer
2k
views
Does IDs from `ls -l /dev/disk/by-id` output are unique to a disk? - DELL PERC card
Does output from ls -l /dev/disk/by-id can be used as a universal disk identifier?
I am currently trying to find a unique identifier that I can use to create a ZFS raidz pool using a unique identifier ...
1
vote
2
answers
2k
views
How does OS read disks that were formatted as 520?
The question is about disks that were formatted as 520 or 528 bytes rather than 512 bytes. How does the operating system read data if I cannot access to those disks via hexedit/cat or any viewer?
Is ...
- 171
2
votes
1
answer
2k
views
Do I need to replace my NVME SSD?
I have a simple server setup:
2 NVME SSD disks (both SAMSUNG MZVLB1T0HALR-00000 for 1TB) united into RAID0.
OS Ubuntu 19.04
Today my system stopped responding. Reboot didn't help.
I connected via KVM ...
- 121
1
vote
1
answer
1k
views
How to interpret conflicting status data between `smartctl` and `mdadm`?
I have a HDD which is a member of a RAID10 array.
smartctl and mdadm give me conflicting indications of its status.
smartctl claims that the disk is FAILED:
$ sudo smartctl -H /dev/sdf
smartctl 7.0 ...
- 1,019
0
votes
1
answer
172
views
Possible to run a G-Technology G-SPEED Q with only 1x hard drive installed?
I picked up an old G-Technology G-SPEED Q that had had all of it's internal drives removed. It previously held 4x 2TB hard drives that it could run RAID 0 or 5 accessible via USB 2.0, Firewire 800 and ...
- 119
0
votes
1
answer
460
views
Can I configure RAID 1 with production server running?
I am facing issue configuring RAID 1 with currently running production server (Ubuntu 18.04 LTS).
Currently my configuration is
sda 8:0 0 1.8T 0 disk
├─sda1 8:1 0 1M 0 part
└─...
- 5
0
votes
1
answer
2k
views
What is the risk of RAID 0 for a *single* disk versus no RAID on that disk?
I have a server that I'm having trouble with getting the drive to show up without using RAID. However, that's different question. This question is about the problems running a RAID 0 on a root drive ...
user250795
0
votes
1
answer
486
views
Bash hangs when trying to create file or issue ls on raid mount point
I have /dev/sdb1 mounted to /media/zm_recordings. I'm using an LSI 9211-4i RAID controller with two 500GB disks in RAID 1. Megaraid manager shows the disks and volumes as healthy. (Screenshot at ...
1
vote
1
answer
1k
views
Grow an mdadm RAID5 array with fewer, larger disks
I have a linux software RAID 5 array, made up of 5 x 3 TB drives, giving me roughly 12 TB in total. I want to replace the disks with newer 8 TB drives, but since these are still quite expensive, I ...
- 13
4
votes
1
answer
2k
views
'Foreign' state for brand new disk in Dell R730
Trying to install additional drives into my R730 Dell Poweredge (none have failed, just need more space)
Inserted the disks and they all show as status 'Foreign' and the only option available is '...
- 226
1
vote
1
answer
173
views
UDMA CRC SMART Reporting, Alternative Software/logs for Diag
* Update *
As it turns out the human readable portion of SMART reporting numbers is pretty useless for the UDMA CRC errors and you just have to track the RAW value. After flushing through over a dozen ...
- 11
0
votes
1
answer
271
views
RAID 5 disk failure?
I know theoretically how RAID 5 works. In one of my system one disk failure happened on a system with RAID 5. It will take a day to get it replaced.
I understand once disk is replace, data will be ...
- 129
2
votes
0
answers
6k
views
How to identify which disk is failing in a HP ProLiant RAID controller?
I have a hard time identifying which drive is failing in my HP ProLiant DL360p Gen8. It has the following RAID controller: Smart Array P420i. I see tons of errors in dmesg:
[40425140.998750] sd 0:1:0:...
- 347
0
votes
1
answer
368
views
Recovering as much as possible from a LVM where some PVs failed
I have an LVM drive & filesystem made up of 4 disks. One of them has had a hardware failure and doesn't work anymore. When this happeend some of the files were readable on the filesystem, and some ...
- 33k
2
votes
0
answers
580
views
BTRFS RAID5 issues with chunk, mount and more
I'm using a RAID5 BTRFS system with three disks on my Ubuntu 18.04.2 server.
One of the drives started to give errors and the filesystem remounted as read-only continusly. I tried btrfs scrub but it ...
- 131
1
vote
1
answer
4k
views
Adding disks to existing RAID array
We want to increase disk space of one of our server. Currently it has 8 physical disks(4 x 480 GB, 4 x 1.9 TB) and 3 virtual disks(RAID 1 (2 x 480GB), RAID 1 (2 x 480 GB), RAID 10(4 x 1.9TB)). We want ...
- 111
2
votes
1
answer
237
views
What is a HP Smart Array P822 Transient Data Drive
We had a disk go bad on one of our HP servers. It is a RAID 60. We had 2 drives in the system that weren't assigned to an array yet. We rebooted went into the array and clicked the failed/BAD drive. ...
- 185
4
votes
1
answer
2k
views
RAID10 array check slow, and slowing
I run a new CentOS 7 machine. Linux runs on 2x SSD setup, and I also have 4x SAS drives setup in software RAID10. The RAID10 array is large, 4x 12TB drives, so 24TB usable.
File system is: ext4
Now ...
- 1,481
2
votes
1
answer
1k
views
Disk errors, drives going into read-only mode and HP P410i Smart Array resetting logical drives
I manage a HP ProLiant DL380 G6 server for a student association which was going to be thrown away by our university. The server has a P410i hardware raid controller which we use for a 3 drive RAID 5 ...
- 123