RAID, an acronym for Redundant Array of Independent Disks (sometimes incorrectly referred to as Redundant Array of Inexpensive Disks), is a technology that provides increased storage functions and reliability through redundancy. -Wikipedia

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790 views

How to create a bootable redundant Debian system with a 3 or 4 (or more) disk software raid10?

How do I create a Debian system which is bootable, has a software raid10 and will still boot when I take out one or more (bootable) disks? I would like to use as few disks as possible, preferably 3 or ...
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1answer
24 views

raid 1 & ml350 gen8 server with centos 6.2

I have a proliant ml350p gen8 HP SERVER with centos 6.2 and two hard disk with 1 TB for both. I have several GB of files and software about 100) with their configurations but I want to install RAID 1 ...
1
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2answers
35 views

LSI megaraid - config raid and non-raid

I have this configuration of server IBM X3650 M4 IBM ServeRAID M5110e 300GB x3 SAS (config as RAID 5) 1TB x1 SAS (config as normal disk, non-raid) Windows Server 2012 R2 Standard I would like the ...
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1answer
34 views

Unable to get SMART metrics from Seagate Disks on Debian OS

Referring to the question here, I too am trying to get all attributes out, as explained in this blog here. I am using Debian 6 as OS, and installed smartmontools version 6.3 using apt-get. My 6 disks ...
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0answers
13 views

Build storage server (SAS/SATA help) [on hold]

Just bought a Lian Li PC-343B-XT (very nice case!), a cheap motherboard and an i7 CPU and a 650W PSU. planning to run Windows Server 2012 R2 on it. I also own a "Fujitsu D2607" SAS controller. My ...
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1answer
22 views

Fixing RAID on PERC S100

I had 3 hard drives in this server. The controller read that disk 0:0 was READY (not online) and there were 2 Virtual Disks. (One was my VD and the other was a mysterious non-RAID VD that I assume ...
0
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1answer
27 views

Hetzner script, configuring SSD + RAID1 image installation

I am trying to figure out how to set this configuration on my Hetzner server. The hetzner installimage script provides a default configuration (with comments: http://pastebin.com/tBqezpFn): # ...
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1answer
34 views

how to setup raid on the supermicro server? [on hold]

I just bought brand-new Supermicro server and need to setup RAID 1. I've tried to install RHEL 7 but it sees 2 drives, so it seems RAID 1 is not runninig. I guess I should change something on this ...
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1answer
3k views

Replacing a failed and degraded virtual disk on Dell T110 II RAID 1 PERC S300

We have a Dell T110 II server, factory installed with Microsoft Windows Server 2012, Standard x64 Edition, running PERC S300 RAID Controller (1068E HBA). It came installed with RAID 1 on the 500GB ...
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1answer
37 views

Convert RAID from Mechanical Disks to SSD?

Any issues with converting a Mechanical Disk RAID to SSD by replacing the drives one-by-one? I couldn't find anyone online who has done this, so let's make this the place to post about it. If you ...
22
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3answers
10k views

Should I defrag my RAID volumes?

It seems to me that since RAID volumes are logical (as opposed to physical), the layout that the OS believes they have might not correspond to the actual phsyical layout. So does defrag make sense ...
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1answer
2k views

SBS 2003 boot stalls at acpitabl.dat

I have a SBS 2003 server running for 3 year without any problems, and few days ago it freezes during the boot. System is using two 500 Gb drives in RAID1 (Intel Matrix 7.5) After trying to load in ...
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1answer
115 views

Can HP Proliant server be set to use no RAID?

I recently purchased 2 HP Proliant DL380 G6 servers for the purpose of virtulization; each will be a new host in our VMware environment. I know that I will get heat for this, but I do not want to use ...
1
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1answer
22 views

SAS drive replacement in Proliant server and compatible drives

I am use an Prolian Server ML350-G5. The server has got two disk in RAID 1+0. The model of the disk is 432320-001 (146GB). One disk has shown an ambar light that means the disk needs to be replaced ...
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1answer
892 views

Kernel panic after boot Centos 6.5 HP DL320 B120i HPVSA

Im working with a new HPDL320 micro server (gen8-2) with a HP Dynamic array B120i My problem is after the setup. I provided the DiskDrive to the installer and everything is fine. at first i used kick ...
0
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2answers
25 views

PERC S100 status incorrect

PE T310 with a PERC S100, one RAID 5 array with three drives, status of the virtual disk is failed, but it boots and everything appears to work. All drives in Server Administrator are Online with a ...
0
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1answer
16 views

IBM BladeCenter S: How to configure new SAS disks

I have an IBM BladeCenter S, and I have added two new 450GB SAS disks. I want to configure the disks as a RAID 0, and assign the new disks to one of the servers in the Bladecenter. When I connect to ...
2
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3answers
5k views

Trouble Installing Windows Server 2008 on Dell PowerEdge R720 w/ PERC H710 Mini

Just picked up a Dell PowerEdge R720. I created a virtual disk with the PERC H710 Mini BIOS Configuration Utility 4.03-0002 and configured it for RAID 1. When I then go to try to install Windows ...
0
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1answer
3k views

Dell Open Manage physical disk failure predicted

I've installed the Open Manage Server Administrator on my Dell T100 to monitor RAID Controller and disks. From the Physical Controller report web page I see a table listing the two disks I have but ...
0
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2answers
37 views

What types of workloads require SAS disks compared to SATA?

I am looking to outfit my new server (new to me) with larger capacity disks. The server right now has 4 SAS 146GB disks in it. My original thought was to just buy larger SAS disks and replace or add ...
0
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2answers
58 views

Dell RAID controller and 36TB storage [closed]

I've been back and forth with Dell about their RAID cards for a PowerEdge R710 server. So far half the customer service people who I spoke too said it would work, the other half said no. My question ...
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0answers
13 views

VDI LUN and RAID Group design optimization

I have a shared storage SAN for our VDI environment that was configured in a specific way by a third party and I was wondering what (if any) was the benefit of the design. The SAN is divided into ...
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1answer
23 views

Configure RAID with 6 drives on Dell PowerEdge 2850

I'm trying to configure 6 146MB discs in 3 pairs of 2 as RAID 1 on my PowerEdge 2850 Server. This is how far I get: ONLIN A00-00 ONLIN A00-01 ONLIN A01-00 ONLIN A01-01 ONLIN A02-00 ONLIN A02-01 ...
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0answers
28 views

Dell R220 and OpenBSD/pfsense

Just wondering if anyone has any experience running OpenBSD or pfsense on a Dell R220 (with either a PERC S110 or H310? I know I can do software based RAID in pfsense, however I've seen a few posts ...
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0answers
260 views

Solaris 9: Degraded mirror unmanageable with raidctl after drive replacement

We have a pair of Sunfire v20z's (WITH LSI MPT raid) that have each had one drive in their mirrors die. bash-2.05# cat /etc/release Solaris 9 4/04 s9x_u6wos_08a x86 ...
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7answers
23k views

RAID5 2-disk failure - what steps to take?

I've got a 6-disk RAID5 array on a gentoo server. mdadm is reporting that two of the disks have failed. In the event that the disks are actually gone, I'm prepared to send the drives to professionals ...
6
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4answers
4k views

howto plan RAID for ESX

eight 300GB SAS drives are available. Can ESX be put on one disk as RAID-0 and others as RAID-5 ? so that in the event of disk failure data (VMs) are safe. if os disk RAID-0 fails could that be ...
0
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1answer
180 views

Windows 2003 Near Freezing

Problem: Our server becomes very very slow (near freezing) if I copy a file from any directory on C: and D: to any other directory. In short It becomes very slow if I touch the hard disk. Currently I ...
17
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2answers
3k views

RAID-6: better to replace two dead drives at the same time, or one at a time?

We have a 16-drive RAID-6 that has three problem drives. Two are already dead, and the third is giving SMART warnings. (Nevermind how it got in such a bad state.) Obviously we want to replace the ...
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votes
0answers
23 views

Should I get RAID and why? [duplicate]

So I don't really understand RAID controllers, why should I have them in my servers and what could happen if I wouldn't have them, is there any bigger risk of losing data introduced when having them?
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0answers
16 views

Rebuilding FakeRAID RAID 5 with new disk, no partitions show up, invalid PMBR

I have a RAID 5 array with 4 2TB disks on a HP Z800. One disk failed and was swapped out for a new one. I went into BIOS Intel Storage Matrix Utility and set the Array to rebuild with the new disk. ...
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2answers
629 views

Preseeding Ubuntu partman recipe using LVM and RAID

I'm trying to preseed Ubuntu 12.04 server installation and created a recipe that would create RAID 1 on 2 drives and then partition that using LVM. Unfortunately partman complains when creating LVM ...
0
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1answer
40 views

Best span size for 12 x 2TB drives in RAID10

We have just taken delivery of a new JBOD chassis, with 14 x 2TB NL-SAS drives - 2 have already been earmarked for enclosure spares, so we have 12 drives available. I have several options for setting ...
7
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1answer
185 views

Windows Server Backup Error - Volumes Larger than 16.7TB cannot be protected?

I'm trying to use Windows Server Backup to backup a RAID array on my new server. But, when I do, I run into this error: The server is running Windows Server 2012 R2 and the array in question is ...
2
votes
2answers
4k views

HP Dynamic Smart Array B120i ESXi performance issue

One of our small offices was in need of a small server to perform certain tasks. Because the noise and size an of a regular server i went with the HP ProLiant Microserver Gen8 G1610T. Witch i expected ...
1
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1answer
65 views

RAID-5 how can I guess how many disks was member?

We have a server which we inherited from previous sysadmin. Now the RAID-5 (H/W based on IBM ServeRAID) now unusable, saying not enough disks to operate. On ServeRAID Manager I can see three physical ...
2
votes
2answers
3k views

Will expanding my Synology Hybrid RAID delete the data on the initial disk?

As the title states, I currently have my Synology NAS with a single 4TB drive in it. I now wish to expand this with another 4TB drive. If I expand the volume (it's currently setup as SHR) will the ...
3
votes
2answers
2k views

How to create Raid 10 with megacli

I have OpenFiler storage server. Without installing Windows and MSM, I want to create raid10 array from disks 2 to 21. I have already successfully installed MegaCli to OpenFiler but I'm stuck in ...
2
votes
1answer
1k views

IBM ServerRaid lost Raid-5 configuration

I have an IBM server x3400 with 8 drives divided into two arrays. After reboot, ServerRaid lost the configuration of the Raid-5 array. The 6 drives that used to be part of this array are there, but it ...
1
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2answers
251 views

Why can't I recover a RAID1 disk which apparently has no errors?

For several years now we run a software RAID1 on a old Gentoo box with a custom Linux 2.6.31. The RAID consists of 2 harddisk with 4 partitions each. In the last years it happend about 3-4 times that ...
18
votes
8answers
11k views

RAID-5: Two disks failed simultaneously?

We have a Dell PowerEdge T410 server running CentOS, with a RAID-5 array containing 5 Seagate Barracuda 3 TB SATA disks. Yesterday the system crashed (I don't know how exactly and I don't have any ...
1
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4answers
851 views

RAID-5 or RAID-10 recommended for Autonomy IDOL Indexes?

I'm well aware of the widespread recommendation that any disk system that is holding a database should not be RAID-5 because of the poor write performance on RAID-5. You can look at BAARF's website ...
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0answers
50 views

IBM x3950M2 server, no drives detected during windows install

I have an IBM x3950M2 (72236MU) server that was running Server 2012. I decided to swap some drives around and reinstall from scratch with Server 2012r2. However I am unable to get the windows ...
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0answers
189 views

Can`t boot new VM on Xenserver 6,5 “tapdisk experience an error”

I have a problem. My server is Dell T310 with perc 6/i raid conroller. I have update any firmware and BIOs and the problem is still the same. My raid VD is RAID5 with 3 SATA 2TB hard disks. It's ...
2
votes
1answer
977 views

Why isn't my RAID array rebuilding?

Got a notice last night that a drive failed on a server. Got in this morning to replace it, and we're getting the following. Controller config report for the array looks fine, with the unusual status ...
2
votes
1answer
1k views

How to get email alert if one of raid 1 disks fails?

I need to know how can I get email alert if one of raid 1 disks fail to work/crashes. I have CentOS 6.4 64bits, software raid. I did some mistake folowing this tutorial, because it was a bottom note ...
2
votes
1answer
996 views

Recover mdadm RAID 10 array: listing all as spares

I'm a bad person and haven't backed up my RAID elsewhere. I now have a RAID10 array that won't assemble, and I'm hopeful I can save it. Here's the details: I have five hard drives set up as RAID10 ...
1
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1answer
25 views

LSI SAS BIOS Pred Fail

So, Today I installed 2 new drives in my server, and the LSI SAS BIOS is stating Pred Fail Yes. What could I do about this, and what does Pred Fail Yes Mean? We need the server for backups, and we ...
3
votes
1answer
1k views

Resize openSUSE 12.3 GPT ext4 partitions in a RAID1 disk array

I have a software raid configured (/dev/md2) which has assigned the partitions sda3 and sdb3 from two 3TB disks (sda and sdb). The partition types are GPT not LVM and file system is ext4. Now, the ...
2
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2answers
1k views

How to get notified of mdadm RAID problems?

I am running Ubuntu 12.04 LTS. Yesterday I found a message in my mailbox saying that my server was shut down. I proceeded to reboot the system, but it didn't come up after many minutes, and I didn't ...