[zfs-discuss] Dirves going offline in Zpool

2013-03-23 Thread Ram Chander
Hi, I have Dell md1200 connected to two heads ( Dell R710 ). The heads have Perc H800 card and drives are configured in Raid0 ( Virtual Disk) in the RAID controller. One of the drives had crashed and is replaced by a spare. Resilvering was triggered but fails to complete due to drives going offli

[zfs-discuss] SSD for L2arc

2013-03-21 Thread Ram Chander
Hi, Can I know how to configure a SSD to be used for L2arc ? Basically I want to improve read performance. To increase write performance, will SSD for Zil help ? As I read on forums, Zil is only used for mysql/transaction based writes. I have regular writes only. Thanks. Regards, Ram ___

[zfs-discuss] Bp rewrite

2013-02-11 Thread Ram Chander
Hi, Anyone knows if there is any progress on bp_rewrite ? Its much awaited to solve re-distribution issue, and moving vdevs. Regards, Ram ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Slow zfs writes

2013-02-11 Thread Ram Chander
Hi Roy, You are right. So it looks like re-distribution issue. Initially there were two Vdev with 24 disks ( disk 0-23 ) for close to year. After which which we added 24 more disks and created additional vdevs. The initial vdevs are filled up and so write speed declined. Now how to find files tha

[zfs-discuss] Slow zfs writes

2013-02-11 Thread Ram Chander
Hi, My OmniOS host is expreiencing slow zfs writes ( around 30 times slower ). iostat reports below error though pool is healthy. This is happening in past 4 days though no change was done to system. Is the hard disks faulty ? Please help. # zpool status -v root@host:~# zpool status -v pool: t