[zfs-discuss] Disk failure chokes all the disks attached to the failing disk HBA

2012-05-30 Thread Antonio S. Cofiño
Dear All, It may be this not the correct mailing list, but I'm having a ZFS issue when a disk is failing. The system is a supermicro motherboard X8DTH-6F in a 4U chassis (SC847E1-R1400LPB) and an external SAS2 JBOD (SC847E16-RJBOD1). It makes a system with a total of 4 backplanes (2x SAS +

Re: [zfs-discuss] Disk failure chokes all the disks attached to the failing disk HBA

2012-05-30 Thread Richard Elling
On May 30, 2012, at 9:25 AM, Antonio S. Cofiño wrote: Dear All, It may be this not the correct mailing list, but I'm having a ZFS issue when a disk is failing. The system is a supermicro motherboard X8DTH-6F in a 4U chassis (SC847E1-R1400LPB) and an external SAS2 JBOD

Re: [zfs-discuss] Disk failure chokes all the disks attached to the failing disk HBA

2012-05-30 Thread Jim Klimov
2012-05-30 20:25, Antonio S. Cofiño wrote: Dear All, It may be this not the correct mailing list, but I'm having a ZFS issue when a disk is failing. I hope other users might help more on specific details, but while we're waiting for their answer - please search the list archives. Similar

Re: [zfs-discuss] Disk failure chokes all the disks attached to the failing disk HBA

2012-05-30 Thread Paul Kraus
On Wed, May 30, 2012 at 12:52 PM, Richard Elling richard.ell...@gmail.com wrote: The best, proven solution is to not use SATA disks with SAS expanders. Since that is likely to be beyond your time and budget, consider upgrading to the latest HBA and expander firmware. I recently had the

Re: [zfs-discuss] MPxIO n00b question

2012-05-30 Thread Sašo Kiselkov
On 05/25/2012 08:40 PM, Richard Elling wrote: See the soluion at https://www.illumos.org/issues/644 -- richard And predictably, I'm back with another n00b question regarding this array. I've put a pair of LSI-9200-8e controllers in the server and attached the cables to the enclosure to each of

Re: [zfs-discuss] MPxIO n00b question

2012-05-30 Thread Richard Elling
On May 30, 2012, at 1:07 PM, Sašo Kiselkov wrote: On 05/25/2012 08:40 PM, Richard Elling wrote: See the soluion at https://www.illumos.org/issues/644 -- richard And predictably, I'm back with another n00b question regarding this array. I've put a pair of LSI-9200-8e controllers in the

Re: [zfs-discuss] MPxIO n00b question

2012-05-30 Thread Sašo Kiselkov
On 05/30/2012 10:53 PM, Richard Elling wrote: On May 30, 2012, at 1:07 PM, Sašo Kiselkov wrote: On 05/25/2012 08:40 PM, Richard Elling wrote: See the soluion at https://www.illumos.org/issues/644 -- richard And predictably, I'm back with another n00b question regarding this array. I've

Re: [zfs-discuss] MPxIO n00b question

2012-05-30 Thread Sašo Kiselkov
On 05/30/2012 10:53 PM, Richard Elling wrote: Those ereports are consistent with faulty cabling. You can trace all of the cables and errors using tools like lsiutil, sg_logs, kstats, etc. Unfortunately, it is not really possible to get into this level of detail over email, and it can

Re: [zfs-discuss] Remedies for suboptimal mmap performance on zfs

2012-05-30 Thread Bob Friesenhahn
On Tue, 29 May 2012, Iwan Aucamp wrote:  - Is there a  parameter similar to /proc/sys/vm/swappiness that can control how long unused pages in page cache stay in physical ram if there is no shortage of physical ram ? And if not how long will unused pages stay in page cache stay in physical ram