Questions tagged [hardware-raid]
RAID solution with hardware assistance. RAID parity calculations can be performed by either the main CPU, or by a separate processor on the RAID controller card.
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RAID 5 - Data corrupted after drive failure?
I have a workstation that uses an adaptec RAID 71605 controller with 4x8TB WD drives in a RAID5 config. One of these drives failed, and after replacing it and rebuilding the RAID, a lot of the data ...
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Recover data from IBM x3650 with SYS BRD ERR
As in every sysadmin nightmare after shutting down a server I'm not able to power it on any more. The server is an old IBM x3650 M4, which has been shut down because unused and of course when not ...
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DL380 G10 - P816 controller - Extending LD produces error about max size, even though there is more space in the Array
Array A on this DL380 G10 consists of 9 1.9TB drives in a RAID 5 config.
It reports unused space of 619995 MB.
There are two logical drives, LD 1 with 13.55 TB (14,000,000 MB), and LD 3 with 97.66 GB (...
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xfs: can't read superblock
I get the following error:
[root@mediaserv ~]# mount /dev/mapper/media1 /media
mount: /media: can't read superblock on /dev/mapper/media1.
This is Fedora 33. I have a RAID5 of 8x 8TB WD Red drives ...
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PERC 6/i Integrated RAID-0 from degraded and unconfigured RAID-10
A 4-drive RAID10 setup was made on a PERC 6/i Integrated card. One disk failed. While waiting for a disk replacement, the controller card died.
Card was replaced, but unfortunately the foreign ...
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RAID-5 inoperable, but no disk failure
Inheritted a system with a 3ware LSI 9750-8i having five disks and RAID-5.
I see a message about "RAID-5 INOPERABLE" for u1 but see no disk failure for the only disk (p1) in the unit.
Unit ...
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Can not access PowerEdge Expandable RAID Controller Configuration Utility
I've looked online but can't find a solution. On post it says press ctrl+r to enter configuration utility and i do that. it then says
1 virtual drives found on the host adapter
1 virtual drives ...
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Linux driver for Intel ICH10R
I would like to know what 64-bit Linux distribution can I use with an Intel ICH10R RAID. I have tried CentOS 5.2 and Ubuntu Server 8.04. Neither support that raid controller.
Also, I would like to ...
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Replace HDD in "predictive failure" state with spare HDD in HP Smart Array P400 controller
I have an HP Smart Array P400 RAID controller with six physical disks configured in RAID 5. Four of the physical disks are in "OK" state, one is in "Predictive Failure" state, and one is in "spare" ...
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Installing Ubuntu Server on AMD chipset RAID array
I'm trying to install Ubuntu Server on a TRX40-based baremetal machine. In order to ensure the availability of this machine, I want to boot the OS from a RAID1 array. This has proved harder than ...
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How to get temperature readings of HP P420 RAID PCI-e card?
I have an HP Proliant ML110 G9 Server.
Added an HP Smart Array P420 PCI-E card to have real hardware RAID on the server. Everything works fine, but I noted that the P420's processor was extremely hot (...
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How do I clone a single drive onto a new RAID 1 array?
Here's a little background on the situation at hand. I have a DELL Precision T7600 at work that I'm responsible for maintaining, which just lost a hard-drive, thankfully just the /home directory was ...
CommunityBot
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Why do I need a raid battery pack?
I'm trying to understand why one would add a batterypack to a raid card. It seems to me like if power goes down, running just the raid card is going to do little good: without power for HDs and ...
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Is putting Server 2019 (full os with hyper-v) and 2 2019 Guests on a single two-disk Raid 1 array reliable enough?
We're currently experiencing some significant cpu/ram performance issues with 2 VM's on our current HPE 2015 tower server (2x Xeon 8c/8t 1.7ghz) running server 2012 for HV and guests (10 guests total),...
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Can't enter HP SmartArray P410 RAID ORCA set-up on HP ProLiant DL320G6
I've just installed an HP SmartArray P410 controller into my HP ProLiant DL320G6 server. The controller seems detected by the server BIOS (it shows up in controllers list in the BIOS set-up), hard ...
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kernel reported iSCSI connection 1:0 error (1022-Invalid or unknown error code) state (3) Fed 25/VessRaid/rsnapshot
We run rsnapshot (rsync) and use ionice & nice. Towards the end of the backup memory usage explodes and the below iSCSI errors start appearing. This is a Dell PowerEdge 1850 running Fedora 25 with ...
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Data layout on RAID-1 Array
For the sake of this question, assume a RAID-1 array of two identical drives.
RAID-1 (Mirroring) stores an identical copy of the data on both drives.
How identical is the drive layout?
Are the drives ...
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I had some drbd (i guess block devices?) on my server, after a crash they are all gone
I am not a sys admin but inherited some servers setup with no documentation in linux. Today the server died in a way it was unresponsive and the VMs running on it down...after a good few hours the ...
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Spin down of Icy Box Raid Enclosure not working
I am running Ubuntu server 18.04 and I am using an ICY BOX IB-RD2253-U31 enclosure with two WD Black disks (no NAS disks) in RAID 1 mode (mirror).
The external enclosure is connected via USB to the ...
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Crucial MX500 new firmware rev M3CR032 causes RAID controller failures?
I've been using Crucial MX500 disks in Dell hardware for a while now (non-server class disk, I know, I know... we're cheap) with firmware M3CR023. But the latest batch arrives with revision M3CR032 --...
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Finding SMART status of SATA disks in HP SmartArray
I'm trying to find SMART params of the disks in my array, it seems that simple way does not work:
% smartctl -d sat --all /dev/sg0 -H
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.9.0-8-amd64] (local ...
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Can I Move RAID-1 (Mirrored) Hard Drives From a Hardware Raid Controller to Software Raid?
Old server:
3ware 9650se PCIe hardware RAID controller with 2 sets of RAID-1 (4 total drives, 2 mirrored) with a 5th drive as a hot-spare.
New server:
Software RAID is the only option. Plan to run ...
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Linux: How to align partition and file system on hardware RAID
I have a test box (PowerEdge 2950) with a Perc 6/i and 4x 15.5k SAS drives attached (with 512 byte block sizes). These are in a single RAID 5 virtual disk with a 64KB chunk size.
I am creating a ...
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linux hardware raid 10 / lvm / virtual machine partition alignment and filesystem optimization
I've been reading everything I can find about partition alignment and filesystem optimization (ext4 and xfs) but still don't know enough to be confident in setting up my current configuration. My ...
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Is file system alignment required on hardware-raid with SSDs?
We are building a raid-10 with LSI 9260-4i + 4 x Intel DC S3500 SDDs.
Partition alignment
From what I understand I need to start fdisk with -H32 -S32 or Ted T'so variant with -H224 -S56 in order to ...
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RAID supercapacitor only card (to replace BBU maintenance free) [closed]
An excellent article here: https://www.servethehome.com/raid-controller-batteries-time-bombs-you-need-to-replace/
Are RAID controller lithium-ion batteries ticking time bombs within your server? Over ...
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How to Add Another Physical Drive to Adaptec maxView RAID6 Logical Drive
I have an ASR71605. I've added another drive to the controller which shows up in max view as ready. The logical drive is RAID 6 with 5 drives in it now. I'm adding this additional drive which is ...
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BroadCom MegaRAID SAS 9361-24i Performance Issues
I have piles of 1TB Samsung mSATA drives that I'm trying to re-purpose for sever storage. I purchased 24 - StarTech 25SAT22MSAT adapters and fitted them with 2 mSATA drives each. I then enabled the ...
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RAID controller link speed with mixed drive types
What will be the negotiated speed if I mix 6 and 12gbps SATA and SAS drives in a single h/w RAID controller, but keep them in the separate raid groups? Let's take LSI (Dell PERC H730) as an example ...
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SAS/RAID controller non-ecc ram
I have Adaptec 51245 controller (I know it is old but I got it for free) that I use in my server.
As far as I know it is highly recommended to use ECC RAM as system memory, but what about RAID ...
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ZFS on top of a bunch of Raid0 (1 disk) volumes with battery backed write-cache
I'm reinstalling a workstation (not a headless server) with an Intel RAID card with BBU and 4GB internal cache.
My current setup uses ZFS on a pair of mechanical disks and a partition on an SSD for ...
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Very Low IOPs on Array of 16x 15K SAS Drives
I'm having issues with one of our servers that is running 16x 900GB 15K SAS drives in a RAID 1+0 Array on a PERC H710P, under normal load its doing ~450 IOPs (almost all writes) and has a backlog of ~...
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Does this SMART report indicate a bad disk?
On a remote server, I have 2x3TB drives set in raid 0 with SLI raid card.
I tried to run SMART tests to see if drives have a problem because server become unresponsive and one drive had to be put back ...
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What does "SSC WriteBack" mean
When I dump LSI RAID 9260-8i configuration by:
/storcli /c0 show all
the Supported VD Operations section looks like:
Read Policy = Yes
Write Policy = Yes
IO Policy = Yes
Access Policy = Yes
Disk ...
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HDD SMART interpretation
I need your opinion if the drive below is failing.
When I run "smartctl -a /dev/sda -d megaraid,1", 2 errors are posted at the end of the output, stating "Error: WP at LBA". I don't see anything ...
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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 ...
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SSD does not show up in server without RAID
I have a server Supermicro SuperServer 6017R-72RFTP with the motherboard X9DRW-7TPF. I have a 1TB Samsung SSD. The SSD shows up when the server boots and in the BIOS, but when I go to install an OS it ...
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How to mount a RAID array on a Linux server if it does not appear to be listed?
I am helping to administer two CentOS 5 servers, on the "user" side of things. A RAID 1 array and a separate single hard drive were recently added by IT support. According to the IT support, both of ...
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RAID Controller - PERC H740P Adapter 8GB cache
The new Dell T440 server with PERC H740P RAID controller is only showing 4GB for cache memory size.
Does Dell have incorrect advertising on their website?
http://www.dell.com/learn/ca/en/cadhs1/...
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What is the difference between RAID defined by host controller versus Linux RAID defined by software?
I have a Proliant DL380 G6 Server with 4 146GB 2.5" SAS drives.
In Ubuntu, (I'm using Webmin to manage), I see a single physical volume, as though there actually is only one disk.
If I run the ...
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Hardware Raid 1 vs Raid 10
What are the advantages/disadvantages of raid 1+0 vs raid 1 regarding the following:
Recoverability. How easy is it to recover data from a raid 1+0 array if the raid array controller fails and you ...
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RAID 10 Single drive is showing up as multiple drives in Windows Server 2016
I installed a Windows Server 2016 in a physical server with RAID 10 (LSI card), whose configuration is shown below:
Even though the RAID configuration shows one 3.725 TB drive, this shows up as 2 ...
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Swap failing drive on ProLiant with P410
On an old HP SE316M1R2 (Same machine as the much more common ProLiant DL 160 G6) I have a 4x450GB Raid 5 array handled by the stock P410 Smart Array controller, fw ver. 8.40.30.00.
Drives are genuine ...
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Data recovery from RAID5 volume managed by hardware controller
I am attempting to salvage as much data as possible off a failed 12 TB RAID-5 volume comprising 4 x Western Digital WD4000FYYZ 4TB hard drives in an OWC RAID enclosure that is based on the Oxford ...
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Areca - expanding a raid by swapping out disks for larger ones
What I am looking to do is, one by one, replace the drives in my current raid array (in a 1680i). After the drives are replaced by their larger counterparts, I want to do an online expand of the ...
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Converting to Hardware Raid from default Software Raid, backplane 1 connector A0 is not connected Issue.
I have a newer Dell R330 server that came with three 128GB SSD's as well as a software raid S130. After setting up a Raid 1 with single hot spare, I realized that ESXI is not fully compatible with ...
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RAID-6 write I/O degrades over time
I've setup a Linux system with RAID-6. Sequential write I/O performance is initially around 600 MiB/s after a reboot, but degrades to between 0.5 MiB/s and 2 MiB/s after the system has been used for a ...
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How effective is LSI CacheCade SSD storage tiering?
LSI offers their CacheCade storage tiering technology, which allows SSD devices to be used as read and write caches to augment traditional RAID arrays.
Other vendors have adopted similar technologies;...
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Problem setting up DL360G5 with scsi RAID
I have a problem with reinstalling OS on a DL360G5.
The BIOS [F9] do not detect any disc controllers and the HP SmartSetup did not find any compatible controllers.
Inside the server, the two SCSI ...
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HPE ProLiant DL380 Gen9 - Smart Storage Battery and controller issue
My server machine is showing a couple of errors, I have read on HPE site and article says to replace the battery. Please someone guide in this regard.
However, my all four SAS drives indicating red ...
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