Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 7/24/07, Lars Ellenberg <lars.ellenberg at linbit.com> wrote: > > please, when posting to mailing lists, > do use text/plain mail. > > On Tue, Jul 24, 2007 at 09:07:23AM +0200, caubert wrote: > > > > Hi list, > > I have got a serious problem with drbd-0.7.21-1 between two server > > installed with Suse Linux Enterprise Server 9 SP3. > > Sometime synchronization is down and `cat /proc/drbd`show this errors > > : "ServerForDLess" and "DiskForDLess" > > if you had looked into the kernel log, > you had seen the io subsystem report io errors. What in his /proc/drbd output specifically points that out? BTW - I'm following your thread on the linux kernel list - Though I don't have any pull there, I did plug drbd on kerneltrap :-) your hard drive is broken. > > unfortunatley, sometimes it cannot > cope with failing hardware gracefully, and gets stuck... > > one typical operating system behaviour in presence of io errors > is to become unresponsive... linux does not too bad, though. > > drbd 8 has much improvements in coping with hardware > (well, lower-layer) errors. but still, > drbd cannot fix hardware. > > you should have a raid1 (raid5, ...) below drbd. > you should have monitoring in place to alert you > when there are io errors, e.g. SMART monitor your disks, > monitor your hardware raid status. at minimum have a logcheck > that scans for certain patterns in log files. > > -- > : Lars Ellenberg Tel +43-1-8178292-0 : > : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : > : Vivenotgasse 48, A-1120 Vienna/Europe http://www.linbit.com : > __ > please use the "List-Reply" function of your email client. > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20070725/30f79fca/attachment.htm>