[Linux-cluster] Re: Does GFS support MD multi-device in a two node cluster?
bmarzins at redhat.com
Wed Jul 12 18:44:44 UTC 2006
On Thu, Jul 13, 2006 at 02:34:20AM +0800, jOe wrote:
> On 7/11/06, jOe <smartjoe at gmail.com> wrote:
> Hello All,
> We want to confirm that GFS support SCSI based MD multi-device
> Server: HP dl380g4 x 2, each has 4-port additional array adapter
> Storage: HP MSA500g2, SCSI array disk system, has 4-port option
> installed, support 4 SCSI cable connect to this system.(4 individual
> physical server or two server with dual SCSI path.)
> OS: RHEL4U3
> We've already deployed RHCS on it (without GFS) and use linux's MD
> multi-device for SCSI multi-path. (merge two lun path from the disk
> array to single failover path. /dev/sda+/dev/sdb ->/dev/md0)
> Question: Can we deploy GFS on such hardware configuration and is it
> possible to create GFS on MD multi-device ? Any pros and cons?
> Thanks a lot,
> Joe Yu
> Anyone know my questions?
I haven't tried it, but it should work just fine.
Cons: I don't know how much active development ther is on MD. There is
currently a lot of work on device-mapper multipathing, so if you have a
problem, it's a lot easier to get help if you are using DM multipathing..
Pros: You're already using MD multipathing and presumably, are happy with it.
> Joe Yu
> Visible links
> 1. mailto:smartjoe at gmail.com
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