On 07/08/2013 21:36, J David wrote:
It feels like some sort of issue with the bus/controller/kernel/driver/ZFS that is affecting all the drives equally.Also, even ls takes forever (10-30 seconds for "ls -lh /") but when it eventually does finish, "time ls -lh /" reports: 0.02 real 0.00 user 0.00 sys Really not sure what to make of that. An attempt to do "ps axlww | fgrep ls" while the ls was running failed, because the ps hangs just as long as the ls. So it's like the system is just repeatedly putting anything that touches the disks on hold, even if all the data being requested is clearly in cache. (Even apparently loading the binary for /bin/ls or doing "ls -lh /" twice in a row.)
As a suggestion, what happens if you read from the drives directly? Boot in single user and try reading a Gb or two using /bin/dd. It might eliminate or confirm a problem with ZFS.
Regards, Frank. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
