Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Friday 18 August 2006 15:04, Lars Ellenberg wrote:
> we discovered an issue in the way we currently stack the devices limits
> (max_segment_size, merge_bvec_fn), we not always report the true limits
> of the underlying device correctly.
> we currently are looking into that.
>
> what are your lower level devices? (sorry if thats somewhere in your
> mails, I just short-circuited on the "Error adding page").
No probs. :)
/dev/drbd0 is defined as:
on moby {
device /dev/drbd0;
disk /dev/md2;
address 10.0.0.2:7788;
flexible-meta-disk internal;
}
and /dev/md2 is a RAID0 MD device, 2.5TB in size, assembled from two
hardware RAID5 volumes created on two ICP Vortex SATA-RAID cards [1]
(/dev/sda1 and /dev/sda2)
moby:~# mdadm -D /dev/md2
/dev/md2:
Version : 00.90.03
Creation Time : Mon May 15 10:53:38 2006
Raid Level : raid0
Array Size : 2637013248 (2514.85 GiB 2700.30 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 2
Persistence : Superblock is persistent
Update Time : Mon May 15 10:53:38 2006
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Chunk Size : 64K
UUID : 5e5ff5d1:fbcae14a:ac747fac:987c5d3a
Events : 0.2
Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 active sync /dev/sdb1
[1] http://www.icp-vortex.com/english/product/pci/rz_sata_8/8586rz_e.htm
--
Kilian CAVALOTTI Administrateur réseaux et systèmes
UPMC / CNRS - LIP6 (C870)
8, rue du Capitaine Scott Tel. : 01 44 27 88 54
75015 Paris - France Fax. : 01 44 27 70 00