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