0
votes
2answers
31 views

RAID card monitoring from Debian OS

We have a custom built Debain OS server with this raid card. Is there anything we can do from the OS side to monitor the raid virtual disks? A few weeks ago we had a raid degrade and did not know ...
0
votes
0answers
39 views

Preseeded RAID partitioning seems wrong

I'm trying to preseed an installation of Debian on a system with 12 HDD. Each drive have : a 1M GPT partition a 300MB RAID 1 /boot a 20GB RAID 6 / remaining space on a RAID 6 /data partition It ...
0
votes
1answer
86 views

Degraded RAID1 on debian 7.5

I am in a bit of a problem with my root server and a degrading RAID. Unfortunately, I'm no expert when it comes to RAID. System informations: Debian 7.5, SSD software RAID1, problem occur since a ...
0
votes
0answers
96 views

mdadm array fails to start at boot, bad superblock on component drive

At boot my mdadm raid5 array fails to start, saying that one of my disks (sdi) has a bad superblock. However, once I log in, I can start the array no problem with mdadm --assemble /dev/md0 ...
2
votes
0answers
203 views

mdadm error: found two disks with the number 0

Im running a server deep in the forest , and after a hard disco failure i got this error. error: found two disks with the number 0. It a server with 2, 1 TB disc in raid 1 with mdadm 0.9 SDA failed ...
0
votes
1answer
240 views

Move encrypted debian system on luks+lvm with dropbear from single SSD to SSD-RAID1

We have a debian linux server which has a single 120GB SSD and 2x2TB HDDs as RAID 1. We now have to move to another server which has 2x240GB SSD and a single 2TB HDD. The aim is to move the current ...
0
votes
1answer
30 views

mdadm grow operation giving nonstop libata errors

Running Debian 7, mdadm 3.2.5. I issued a command to grow a 5 disk, 3 spare raid 5 array to an 8 disk, 0 spare raid 6 array: mdadm --grow /dev/md0 --level=6 --raid-devices=8 ...
0
votes
0answers
35 views

How to rearange disks with a new SSD

Here is the problem: I have a Debian server with only 4 disk bays. At the moment there are 4 x 1GB SATA disks in software RAID 10. I'd like to swap one of the SATAs with a 1GB SSD disk and move the OS ...
0
votes
1answer
88 views

Debian Software raid not getting synced

my Software-Raid under Debian suddenly says: Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md2 : active raid1 sda3[0](F) sdb3[1] 2917156159 blocks super 1.2 [2/1] [_U] md1 : ...
1
vote
1answer
425 views

Resize partitions used in Debian software RAID 1 mirror

I have a simple RAID1 setup with a few drives. I've realised that one of the partitions is not aligned to a cylendar boundary and I'm concerned that this is a bad thing that will cause me grief at ...
0
votes
2answers
241 views

Duplicate partition table in (Debian) Linux

A disk failed in a software RAID array and I'm trying to replace it. I've done this before without a hitch but this time I'm getting an error when trying to duplicate the partition table. I'm using ...
0
votes
2answers
81 views

Build RAID 1 array (non-boot), apparently all data is gone?

The computer that this is occurring in, has a 40GB boot drive (Debian) and two non-boot drives. I have two identical 1.5TB drives (one partition on each), and one of them had data on it (other was ...
2
votes
2answers
1k views

Using software-RAID vs “firmware”-RAID (a.k.a. FakeRAID) [closed]

We recently bought a tower server on which I want to install Debian. I thought the device had hardware RAID, as I could see a BIOS screen. As it turns out, it's still a software RAID. When I configure ...
0
votes
3answers
161 views

RAID 5 with two failed devices

I have a software RAID 5 with 6 devices and one of them needs to be rebuilt. Until now, everything is OK. But, while the disk is rebuilt, it was found bad sectors on another disk and is being marked ...
4
votes
2answers
265 views

Why is domU faster than dom0 on IO?

I have installed debian 7 on a physical machine. This is the configuration of the machine: 3 hard drives using RAID 5 Strip element size: 1M Read policy: Adaptive read ahead Write policy: Write ...
0
votes
2answers
420 views

RAID 1 hard disks errors, file system is not mounting

I have a Server with 2 HDDs in soft RAID 1, the OS is Debian Wheezy. After some database testing, the file system has gone to read-only mode, after which I have rebooted the machine. The server is not ...
0
votes
0answers
90 views

why cant I set the correct partition size in fdisk

I am currently attempting to setup a raid array. At this point in time I am setting up partitions of the same size on each hard drive that I would like to use in the array, although when I used fdisk ...
1
vote
1answer
75 views

Why is my synchronized I/O so bad compared to direct?

I have two 3TB disks in a software RAID 1 setup and the host OS is 64bit Debian wheezy. Issuing: dd if=/dev/zero of=test bs=64k count=3k oflag=direct && rm test Yields: 201326592 bytes ...
1
vote
1answer
446 views

Intel ESRT2 RAID array is not recognized by Debian

We have a new server here with an Intel Server Board S1200BTL and I'm trying to set up a RAID 1 for data storage. I have Debian 6 installed on an SSD, and two 2TB hard drives that are supposed to be ...
1
vote
1answer
145 views

it is good and safe to use debian software raid?

My questions is as simple as the title: it is good and safe to use debian6 software raid? How safe it is? Can i have a software RAID configuration backup? How can i deal/recover with/from a HDD ...
0
votes
0answers
316 views

Error at booting server - ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen

I installed Debian 6 on HP server with hardware RAID 5 configured. RAID Controller Info 04:03.0 RAID bus controller [0104]: Compaq Computer Corporation Smart Array 64xx [0e11:0046] (rev 01) Kernel ...
0
votes
0answers
220 views

Supermicro server with aftermarket MegaRaid

My company gave me a budget to build a VM server, so I bought a Supermicro server and saved some $$ by buying an aftermarket MegaRaid - 8308ELP (I know it's old, but it fit my needs and was cheap). I ...
1
vote
0answers
203 views

RAID disk not booting

my hosting facility replaced disk /dev/sda for me and I've added it to the RAID via sgdisk -R /dev/sda /dev/sdb mdadm /dev/md0 -a /dev/sda1 mdadm /dev/md1 -a /dev/sda2 mdadm /dev/md2 -a /dev/sda3 ...
2
votes
0answers
116 views

Debian squeeze server hangs when accessing md raid 5 over network

My debian squeeze server ha begin to hang/freeze when I try to access my md raid 5 over network (via samba or afp/netatalk). This behavior started when I installed netatalk, libgcrypt11 from wheezy. ...
2
votes
2answers
342 views

Decrease in disk performance after partitioning and encryption, is this much of a drop normal?

I have a server that I only have remote access to. Earlier in the week I repartitioned the 2 disk raid as follows: Filesystem Size Used Avail Use% Mounted on /dev/mapper/sda1_crypt ...
3
votes
2answers
1k views

Raid 5 with 4 disks on Debian automatically creates a spare drive

I'm trying to to create a RAID 5 with 4x 2TB disks on Debian 6. I followed the instructions from: http://zackreed.me/articles/38-software-raid-5-in-debian-with-mdadm I created the raid with following ...
2
votes
1answer
1k views

High load of resources by software RAID1 in Debian 6

I have a server with Debian 6 and software RAID1. There is a problem: every few seconds the jbd2/md2-8 process loads all the HDD IO. It was detected by iotop. And for the md2_raid1 process 99% of IO ...
0
votes
1answer
260 views

ASUS PIKE 6480 doesn't work with debian?

I have DIYed an 1U server with [ASUS Z8NA-D6] motherboard, PIKE 6480 extended RAID card, and four SAS hard disk. And I can find this extended card's module in the linux kernel called mvsas. But fail ...
2
votes
2answers
223 views

Server refuses to boot when Raid5 disk is disconnected - /root/ missing

I recently set up a NAS server running a Debian OS (6.0.4) It contains 4 disks, 3 of them are in a Raid5 array, while the last one is used for the OS. To simulate a disk-failure I unplugged one of ...
1
vote
1answer
559 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 ...
0
votes
2answers
549 views

MegaRAID SAS 8208XLP

I'm just wondering whether anyone knows if I can use a Debian distro with the MegaRAID SAS 8208XLP controller. Currently at the moment LSI only supply drivers/support for RHEL/CentOS but I was ...
1
vote
1answer
225 views

Delete RAID 1 from Debian

i've Debian installed RAID 1 2x 160GB HD, i want to delete it but i'm totally noob in linux, i don't want to install fresh image and start from scratch again, i cannot do backup because i've nearly ...
0
votes
2answers
184 views

Software RAID on Debian 6 VM

I was thinking of setting up a software RAID on my VMs running Debian OS 6. I found a guide: "http://tldp.org/HOWTO/Software-RAID-HOWTO-5.html" , but it seems like my system lacks a "/proc/mdstat" ...
4
votes
1answer
437 views

Debian installation on software RAID (lilo.conf configuration)

Debian installation program has created lilo.conf: boot=/dev/md1 root=/dev/md1 raid-extra-boot=mbr-only But when i configure lilo i usually put these lines disk=/dev/md1 sectors=63 heads=255 ...
1
vote
4answers
1k views

DRBD or similiar RAID over net on slow/limited networks

I am looking for ways to create some kind of file replication without losing too much performance on file operations. A real RAID is not an option due to non-technical constraints. As far as I ...
0
votes
1answer
212 views

Setting up separate raid5 on Debian

I want to set up a NAS/share with SAMBA on Debian(squeeze) with Webmin, and i want a setup like this: 2x40GB(IDE), in RAID1 for distro/debian. 4x40gb(SATA), in RAID5 for storage/NAS This is just ...
1
vote
1answer
2k views

Debian 6 installation - unable to partition/mount with an Intel Raid Controller (readonly)

I'm trying to install a Debian 6 (newest version) on a Server which has 2 RAIDs. First RAID is configured on an Intel controller and is a simple RAID 1 with 3 partitions (swap, /, and a special data ...
3
votes
3answers
2k views

Why is my mdadm raid-1 recovery so slow?

On a system I'm running Ubuntu 10.04. My raid-1 restore started out fast but quickly became ridiculously slow (at this rate the restore will take 150 days!): dimmer@paimon:~$ cat /proc/mdstat ...
1
vote
0answers
569 views

squeeze with lvm on top of raid 0 fails to boot using grub2

GRUB Loading Welcome to GRUB! error: no such device: <GUID>. Entering rescue mode... grub rescue> ls (hd0), (hd0,msdos2) (hd0,msdos1) grub rescue> set prefix=(hd0,msdos1)/grub ...
0
votes
2answers
996 views

Installing Proxmox VE with RAID on a MSI 890FXA-GD70 board

I'm trying to install Proxmox VE on my server with a MSI 890FXA-GD70 motherboard, the RAID array is a on-board SB850 array. My RAID setup is: 2x500gb Western Digital Caviar Blue Setup in RAID1 ...
0
votes
2answers
241 views

rebuilding raid5 array

I inherited a machine that was running Debian with a RAID 5 array. I installed a bunch of updates (1700 or so) that the OS recommended, then after rebooting, the raid array did not mount. The device ...
0
votes
0answers
714 views

How to install Squeeze on a Dell R210 with H200 Raid Card

I am having trouble installing Debian squeeze on a Dell R210 with H200 Card. After Installation, I am not able to boot it. Has someone installed Debian Squeeze on a Dell R210 with S100 or H200, and ...
2
votes
3answers
5k views

Impossible to stop raid device

I'm trying to stop a RAID disk in order to replace it by a new one, as this one is not working properly. I'm typing mdadm --stop /dev/md1, and I'm getting an error message: mdadm: fail to stop array ...
3
votes
1answer
745 views

Use a RAID Controller without drivers?

Ordered an Adaptec 1420SA RAID card for my Debian Squeeze media server but didn't check to see if it was compatible, turns out it's not because it uses something called hostRAID which requires special ...
3
votes
1answer
266 views

Putting a spare Raid device back to active state

I have a problem with my Raid setup. I have 3 disks in my Raid: md2 : active raid5 sdc3[3](S) sdb3[4](S) sda3[0] 2925532672 blocks level 5, 64k chunk, algorithm 2 [3/1] [U__] md1 : active ...
1
vote
1answer
375 views

raid1 DegradedArray event

I am new to raid, and set up a software RAID1 with two sata disk a month ago. I didn't check the status, but tested by unplugging one of the drives and verifying the system worked normally. Today, I ...
1
vote
2answers
3k views

Is there a list of compatible RAID hardware with standard linux kernel

I am installing a large storage system under Debian 6.0. We bought a HightPont RocketRAID 2720, a very powerfull card claiming to be linux compatible, but when i installed they just provide a already ...
5
votes
3answers
3k views

Why does mdadm write unusably slow when mounted synchronously?

I have a 6 disk raid6 mdadm array I'd like to benchmark writes to: root@ubuntu:~# cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] md0 : active raid6 sda[0] sdf[5] sde[4] sdd[3] sdc[2] ...
0
votes
2answers
579 views

What utilities could I use to create/manage the Intel SRCU31L RAID volumes in Debian Linux?

I've got an old box that I don't want to scrap yet because it's got a nice working 5-disk RAID assembly. I want to create 2 arrays: RAID 1 with 2 disks and RAID 5 with the other 3 disks. The RAID ...
2
votes
1answer
1k views

software RAID array not starting in initramfs on Debian

One of my Debian servers (kernel 2.6.30-AMD64) refuses to start the software RAID array that houses the root partition in initramfs. It dumps me with a busybox console. When I follow the necessary ...