Maybe everything is all right with what I am doing - maybe not.
I have heard roumors that my setup may cause troubles.
Does anybody know something about it?
I try to set up a cluster on a SAN with shared disks, mirrored over 2 storage controllers.
Using QLogic HBAs, I have set
ql2xfailover=1
to use the multipathing feature.
We have 2 separate fabrics to connect to the storage and 2 HBAs in each machine.
Disk layout:
A B (controllers)
sda sdf
sdb sdg
sdc mirror sdh -+
sdd mirror sdi |
sde mirror sdj -+
|
+-- volume group
Also, we do not have much write thruput to the disks.
I use reiserfs because I could resize it w/o remounting.
Austin Gonyou has written something about write cache mirroring - what is that?
Necessary?
Howto?
I use LVM1
Am I in danger?
Thanks
Thomas
--
Thomas Meller
mailto: thomas.meller@t-systems.ch
mailto: thomas.meller@gmx.net
----
...Our continuing mission: To seek out knowledge of C, to explore strange
UNIX commands, and to boldly code where no man page has ever been seen
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