Re: System hangs for several minutes (disk IO related)

2013-09-02 Thread Nils Pascal Illenseer
Hi, I see similar hangs on one of our Supermicro servers. We have a ZFS RAID (mirrored stripped vdevs) and when I use "zfs receive" to receive snapshots the whole system hangs for up to ten or even more minutes at the end. Kernel: latest (9.2-RC3) Adaptec 6805 RAID-Controller provides disks for

Re: System hangs for several minutes (disk IO related)

2013-07-31 Thread John Johnstone
On 7/31/13 9:41 AM, Mark Felder wrote: If you Google SmartArray P400 I'm sure you will find tons of horror stories. As soon as I saw that in your post I recalled looking into an issue for a customer not too long ago. In short, it's a very bad controller with tons of issues. I could be mistaking t

Re: System hangs for several minutes (disk IO related)

2013-07-31 Thread Mark Felder
If you Google SmartArray P400 I'm sure you will find tons of horror stories. As soon as I saw that in your post I recalled looking into an issue for a customer not too long ago. In short, it's a very bad controller with tons of issues. I could be mistaking this for another controller, but I'm prett

Re: System hangs for several minutes (disk IO related)

2013-07-31 Thread Frank Leonhardt
I don't know what kind of answer you're expecting unless its for moral support or the obvious. I was thinking of buying one of these as they're very cheap at the moment, but decided against it due to compatibility problems reported. IIRC something in it was supported up to FreeBSD 7.2 - the NIC

System hangs for several minutes (disk IO related)

2013-07-30 Thread Ewald Jenisch
Hi, I'm seeing rather strange behavior on an HP DL585 G5 wrt. disk IO: When there's any disk io the machine completely freezes, i.e. no console input possible, no screen output - complete hang. After some minutes the box comes back to normal again - but sure enough with the next disk io it freeze