Gentoo Archives: gentoo-server

From: "Jesse
To: gentoo-server@l.g.o
Subject: RE: [gentoo-server] Auto allocating RAID sets on reboot w/mdadm
Date: Wed, 23 Nov 2005 16:41:12
Message-Id: FB5D3CCFCECC2948B5DCF4CABDBE6697545BF0@QTEX1.qg.com
1 Well yes, I had previously tried the lines that were commented out,
2 including the DEVICE statement as listed. And I had followed one of the
3 conventions given in mdadm.conf(5) -- using the "*" to wildcard the
4 devices. I had seen other examples on the net where an SA had used
5 multiple DEVICE statement to separate out the devices with their
6 respective ARRAYs, but there's no mention of that being needed in the
7 man pages of mdadm/mdadm.conf that I could find.
8
9 And I may be a little dense here, but I still don't see an "mdadm
10 --assemble" in the startup anywhere, so I'm a little confused as to how
11 this is supposed to happen. Rough being a raidtools kinda guy for all
12 those years... ;)
13
14 Thanks!
15 Rich
16
17 -----Original Message-----
18 From: Patrick Lauer [mailto:patrick@g.o]
19 Sent: Wednesday, November 23, 2005 9:38 AM
20 To: gentoo-server@l.g.o
21 Subject: Re: [gentoo-server] Auto allocating RAID sets on reboot w/mdadm
22
23
24 On Wed, 2005-11-23 at 09:21 -0600, Jesse, Rich wrote:
25 > Hey all,
26 >
27 > I've got two RAID-0 sets (I know, I know, but they really are
28 expendable
29 > and it's my test box) but when I reboot, the RAID sets are not
30 > reallocated. I've looked in /etc/init.d/mdadm and
31 > /lib/rcscripts/raid_start.sh, but "mdadm --assemble" isn't called and
32 > consequently the RAIDs aren't mounted. Here's the pertinent lines
33 from
34 > /etc/mdadm.conf:
35 >
36 > #DEVICE /dev/sd*
37 > #ARRAY /dev/md0 devices=/dev/sda,/dev/sdb,/dev/sdc,/dev/sdd
38 > #ARRAY /dev/md1 devices=/dev/sde,/dev/sdf
39 > ARRAY /dev/md0 level=raid0 num-devices=4
40 > UUID=bb968c49:5ca8ea1b:383ac76f:8950b88a
41 > ARRAY /dev/md1 level=raid0 num-devices=2
42 > UUID=96ba9471:e161224f:6bac7812:23c3f914
43 add a DEVICE line ...
44 mdadm will only use disks that are listed there, e.g.
45 DEVICE /dev/sd[abcd]1
46
47 [snip]
48 > And Google hasn't really helped. The Gentoo Wiki's great for
49 > installation and setup, but I wasn't able to find anything about this.
50 man mdadm / mdadm --help
51 > Thoughts? This must be really simple...
52 It usually is :-)
53
54 wkr,
55 Patrick
56 --
57 Stand still, and let the rest of the universe move
58
59 --
60 gentoo-server@g.o mailing list