Hi, I'm using Tim Foster's zfs automatic snapshot to keep copies of a zfs filesystem.
I keep 30 days, seven weeks and 12 months, these snapshots get created at 00:00 every day and when a new week starts (or a new month) there are two or three snapshots that start at the same time. Using zfs list I see that when more than one snapshot starts at the same time, the USED column of the report shows no space occupied, while, when just a single snapshot is done, I can see how much space is being used. Snaphots are ok, I mean, if I go inside one of the 0 byte used one I can see that the files are ok and their content is what they really contained at that point in time, so it seem just a 'cosmetic' problem. Here his zfs list on that filesystem -----------8<--------------------------------- # zfs list NAME USED AVAIL REFER MOUNT POINT nas 262G 879G 11,2G /nas nas/nwserv 13,0G 879G 6,86G /nas/ nwserv nas/[EMAIL PROTECTED]:daily-2008-02-27-00:00:00 519M - 6,99G - nas/[EMAIL PROTECTED]:daily-2008-02-28-00:00:00 491M - 7,02G - nas/[EMAIL PROTECTED]:daily-2008-02-29-00:00:00 0 - 6,91G - nas/[EMAIL PROTECTED]:weekly-2008-02-29-00:00:00 0 - 6,91G - nas/[EMAIL PROTECTED]:daily-2008-03-01-00:00:00 0 - 6,93G - nas/[EMAIL PROTECTED]:monthly-2008-03-01-00:00:00 0 - 6,93G - nas/[EMAIL PROTECTED]:weekly-2008-03-01-00:00:00 0 - 6,93G - nas/[EMAIL PROTECTED]:daily-2008-03-02-00:00:00 241M - 6,94G - nas/[EMAIL PROTECTED]:daily-2008-03-03-00:00:00 242M - 6,94G - nas/[EMAIL PROTECTED]:daily-2008-03-04-00:00:00 538M - 6,96G - nas/[EMAIL PROTECTED]:daily-2008-03-05-00:00:00 499M - 6,74G - nas/[EMAIL PROTECTED]:daily-2008-03-06-00:00:00 519M - 6,80G - nas/[EMAIL PROTECTED]:daily-2008-03-07-00:00:00 514M - 6,81G - nas/[EMAIL PROTECTED]:daily-2008-03-08-00:00:00 0 - 6,80G - nas/[EMAIL PROTECTED]:weekly-2008-03-08-00:00:00 0 - 6,80G - nas/[EMAIL PROTECTED]:daily-2008-03-09-00:00:00 256M - 6,85G - ----------->8--------------------------------- As you can see, when there is a weekly or monthly snapshot used space is 0. Is this a known issue? Best regards. Maurilio. PS. nas/nwserv is compressed and has atime=off # zfs get all nas/nwserv | grep local nas/nwserv compression on local nas/nwserv atime off local nas/nwserv snapdir hidden local nas/nwserv com.sun:auto-snapshot:weekly true local nas/nwserv com.sun:auto-snapshot:monthly true local nas/nwserv com.sun:auto-snapshot:daily true local # This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
