 | | | Shared disk and HA | Shared disk and HA 2005-07-12 - By Al Tobey
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If you're using Linux-HA, chances are you'll have to write the scripts
yourself to do the disk mount/umount and fsck. I have Zope's ZEO set
up on a similar configuration, except that the disk backend is on an
HP EVA. At the time, I didn't want to deal with OCFS and GFS
wasn't available, so it's running on ext3 using linux-ha to coordinate
mounting and unmounting.
Here is my /etc/fstab line:
LABEL=zope_data /web/zope_data ext3
data=journal,sync,noatime,nodev,dirsync,noauto 0 0
I've attached my linux-ha ZEO script. It still needs some work (for
instance, the find_disk() function should be smarter), but serves it's
purpose well.
-Al Tobey
On 7/12/05, BQ <b99999@(protected)> wrote:
> Hi,
>
> I'm building two servers which have to work in HA mode. Network
> connections are easy to handle thanks to Linux HA project, however,
> I'm having problems implementing shared storage between these 2
> machines.
>
> Both of those machines have IBM ServeRAID controllers and they are
> connected to external expansion enclosure (disk).
>
> IBM nicely gives documentation for Windows, but I didn't find anything
> for Linux.
>
> Basically I want those servers to share their data. Only one will be
> active at the time and if it goes down the other one should take over.
>
> Does anyone have experience on building this and can point me to some
> documents which describe how to do it?
> Btw, for this purpose I can't use SAN storage.
>
> Thanks,
>
> BQ
>
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>
--
-Al Tobey
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