search for: sd_max_throttl

Hello, we are using hardware array and its vendor recommends the following setting in /etc/system: set sd:sd_max_throttle = <value> or set ssd:ssd_max_throttle = <value> Is it possible to monitor *somehow* whether the variable becomes sort of bottleneck ? Or how its value influences io traffic ? Regards przemol

Under Solaris 10 u6 , No matter how I configured my ARECA 1261ML Raid card I got errors on all drives that result from SCSI timeout errors. yoda:~ # tail -f /var/adm/messages Jan 9 11:03:47 yoda.asc.edu scsi: [ID 107833 kern.notice] Requested Block: 239683776 Error Block: 239683776 Jan 9 11:03:47 yoda.asc.edu scsi: [ID 107833 kern.notice] Vendor: Seagate

Hi, I just deploy the ZFS on an SAN attach disk array and it''s working fine. How do i get dual pathing advantage of the disk ( like DMP in Veritas). Can someone point to correct doc and setup. Thanks in Advance. Rgds Vikash Gupta This message posted from opensolaris.org

I want to configure my zfs like this : concatination_stripe_pool : concatination lun0_controller0 lun1_controller0 concatination lun2_controller1 lun3_controller1 1. There is any option to implement it in ZFS? 2. there is other why to get the same configuration? thanks This message posted from opensolaris.org

...n Jul 7 22:35:09 merope scsi: ASC: 0x29 (power on, reset, or bus reset occurred), ASCQ: 0x0, FRU: 0x0 I had an idea that this might be due to NCQ overruns since if I''m not mistaken the X25E only supports 32 outstanding commands, so I''ve started testing various things. Setting sd_max_throttle in /etc/system doesn''t seem to make any difference. However... tuning zfs_vdev_max_pendning down from 35 to 10 made a difference. Whereas if I used to see long "hickups" in "zpool iostat X25E 10", with that one tuned down to 10 things run *much* more smoothly - no h...