Thx to Juergen Rothenanger for a swift reply: SUN's Alert Notification 57636 (in SunSolve, search on document-ID 57636) describes on the spot what happened. Altough this document suggests to disable the UFS-logging by putting explicitly the monut-option "nologgin" in "/etc/vfstab" and leave VxVM perform its logging via the DRL, we will prefer the other strategy: Not encapsulating the root-disk(s) in VxVM, but stick with Solstice Disksuite (or Solaris Volume Manager, for Solaris-9 and up) to mirror the boot-disks. Any other less critical disks and partitions can still be managed with VxVM because (currently) more easy to use. Still, for any VxVM-managed (logical) partitions, by default they are created by VxVM with logging (DRL) enabled. So we will install the documented patches so that VxVM will add the "nologging" option in "/etc/vfstab" to avoid the logging-conflict with DRL. Regards, Rob -----Original Message----- From: sunmanagers-bounces@sunmanagers.org [mailto:sunmanagers-bounces@sunmanagers.org] On Behalf Of rob.de.langhe@belgacom.be Sent: 17 January 2005 10:57 To: sunmanagers@sunmanagers.org Subject: VxVM DRL combined with UFS-logging: filesystem corruption? Hi, last week we had a system with "/" filesystem corrupted so badle, that it had to be restored from backup tape. Surely we do not want this to happen again, so after careful discussion with SUN about what could have caused such bad filesystem corruption, SUN noticed that both UFS-logging was activated via the options in "/etc/vfstab", and the Veritas Volume Manager's "Dirty-Region-Logging" (DRL) was enabled at the same time. This was a non-supported situation according to SUN, but they failed to present me clear documented reasons that such combination indeed is the root-cause for a filesystem corruption. Can anyone point me to documented behaviour with these 2 logging-methods activated at the same time? I admit, this situation doesn't sound too healthy, but I inherited this environment since a few weeks and want to show good reasons why it should be 'corrected'. Thx a lot in advance ! Rob **** DISCLAIMER **** http://www.belgacom.be/maildisclaimer _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers **** DISCLAIMER **** http://www.belgacom.be/maildisclaimer _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Mon Jan 17 05:55:21 2005
This archive was generated by hypermail 2.1.8 : Thu Mar 03 2016 - 06:43:42 EST