The raid5 tag has no wiki summary.
3
votes
2answers
57 views
How to safely replace a not-yet-failed disk in a Linux RAID5 array?
I have a software RAID5 array (Linux md) on 4 disks.
I would like to replace one of the disks with a new one, without putting the array in a degraded state, and if possible, online. How would that ...
1
vote
1answer
33 views
How to add RAID5 to existing crypto-LVM?
I recently installed Debian Wheezy and let the installer guide partition the disk using a whole partition with encryption (LVM). Later on I've added four disks and setup RAID5 on them (using mdadm).
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1
vote
0answers
92 views
SW Raid5 dies with 2 missing disks
i have an debian squeeze with 6x3TB Disks. On the SWRaid5 are 4 partitions. First for gpart Bios, Raid1 for "/", Raid5 for swap and the biggest part raid5 for files. While the system has build status ...
1
vote
1answer
136 views
IO Error on RAID5 member. What to do about bad blocks?
I recently got an IO Error on one of my RAID5 members; on a 3 disk fakeRAID array. I didn't notice at the time - there was only a message in /var/log/kern.log - so I had continued running the machine ...
1
vote
0answers
59 views
Rebuilding a raid5 array from images
I have an 8 disk possibly raid5 array that was part of a fried NAS, the whole thing uses pdc20265 promise chips and some kind of embedded system on a small ide board. No clue if the board is anything ...
2
votes
1answer
208 views
Migrating from hardware to software RAID
I have an old PCI-X controller running 8 drives in RAID 5. I'd like to dump the controller and go to software RAID under Ubuntu. Is there a way to do this and retain the data from current array?
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3
votes
5answers
265 views
Linking Intel RAID 5 partitions to boot disk
I have a 5-disk Intel RAID 5 along with a 6th boot disk with /, /boot, and swap.
What I was planning to do was mount the Intel RAID partitions (which I've added with fdisk) so that the 6th disk ...
2
votes
2answers
412 views
Recovery of data on raid5+lvm reiserfs partition, after raid5 problems
I've got a server with 3 sata hard drives. Each has 2 partitions: one small is part of /dev/md0, a raid1 array (/boot), rest is part of a raid5 array (/dev/md1), which is an lvm physical volume. ...
1
vote
1answer
255 views
is it possible to recover a raid 5 array by using usb enclosures?
I had a RAID 5 (Linux software RAID) server which recently decided not to boot anymore. It seems to be a motherboard problem possibly due to not being protected by a UPS during a power failure. It ...
2
votes
1answer
100 views
Worrisome HD related messages after power outage
Had a power outage two weeks ago on my BSD server that my UPS decided then was a good time to fail. Just fired it up this evening only to have the following errors show during what I would assume is ...
5
votes
6answers
2k views
Pros and cons of software Parity-RAID (e.g. RAID5)
I was recently told about some problems concerning Parity-RAIDs without a non-volatile cache. More exspensive HW-controllers do have battery-powered caches to finish write-operations in case of power ...
0
votes
1answer
330 views
Problem with RAID5
I have a CentOS server with RAID5. Every time RAID5 re-syncs my server stop working. The hosting company stopped the httpd service so that RAID5 can re-sync itself, a process which can take as long as ...
13
votes
2answers
21k views
How to recover a crashed Linux md RAID5 array?
Some time ago I had a RAID5 system at home. One of the 4 disks failed but after removing and putting it back it seemed to be OK so I started a resync. When it finished I realized, to my horror, that 3 ...
