<div>Thanks, I will try that.</div>
<div> </div>
<div>PN<br><br></div>
<div class="gmail_quote">2008/6/23 Lars Ellenberg <<a href="mailto:lars.ellenberg@linbit.com">lars.ellenberg@linbit.com</a>>:<br>
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<div class="Ih2E3d">On Mon, Jun 23, 2008 at 03:49:13PM +0800, PN wrote:<br>> Hi all,<br>><br>> Currently we are using DRBD 8.2 on RHEL 4.5. We have 5 drbd partitions and<br>> works with GFS and multipath. It works well in the past few months.<br>
> Last week, we increased the number of partitons to 12 and do a full sync, OOM<br>> occurred and we need to reboot the whole cluster.<br>> The 2 storages have dual Xeon 3GHz CPUs and 2GB RAM, is it too few to do the<br>
> full sync?<br>> Our target is to increased to 30 partitions, how much memory shall be enough<br>> for the operational need on the storage servers?<br><br><br></div>30 drbd, all syncing in parallel,<br>using max-buffers (in unit of page size) of ~4000 to 8000:<br>
8000 * 4k * 30 --> around one GB of buffers in flight<br>with drbd only.<br>if you cannot handle that gracefully, down the "max-buffers" settings,<br>and serialize the resync of those resources.<br><br>--<br>
: Lars Ellenberg <a href="http://www.linbit.com/" target="_blank">http://www.linbit.com</a> :<br>: DRBD/HA support and consulting sales at <a href="http://linbit.com/" target="_blank">linbit.com</a> :<br>
: LINBIT Information Technologies GmbH Tel +43-1-8178292-0 :<br>: Vivenotgasse 48, A-1120 Vienna/Europe Fax +43-1-8178292-82 :<br>__<br>please don't Cc me, but send to list -- I'm subscribed<br>_______________________________________________<br>
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