ZFS, SSDs, and TRIM performance

2015-10-29 Thread Sean Kelly
setting the vfs.zfs.trim.enabled=0 tunable for now since WAL segment turnover actually causes TRIM operations a lot, but unfortunately this is a reboot. But disabling TRIM does seem to fix the issue on other servers I’ve tested with the same hardware config. -- Sean Kelly smke...@smkelly.org

Re: Dell NVMe issues

2015-10-06 Thread Sean Kelly
> On Oct 6, 2015, at 11:06 AM, Eric van Gyzen wrote: > > Try this: > >sysctl vfs.zfs.vdev.trim_on_init=0 >zpool create tank mirror nvd[01] > That worked. So my guess is the controller/FreeBSD is timing out while zpool asks the drive to TRIM all 1.6TB?

Re: Dell NVMe issues

2015-10-06 Thread Sean Kelly
> On Oct 6, 2015, at 10:29 AM, Slawa Olhovchenkov wrote: > > On Tue, Oct 06, 2015 at 10:18:11AM -0500, Sean Kelly wrote: > >> Back in May, I posted about issues I was having with a Dell PE R630 with >> 4x800GB NVMe SSDs. I would get kernel panics due to the inabili

Dell NVMe issues

2015-10-06 Thread Sean Kelly
may be here? 10.2-RELEASE-p5 nvme0@pci0:132:0:0: class=0x010802 card=0x1f971028 chip=0xa820144d rev=0x03 hdr=0x00 vendor = 'Samsung Electronics Co Ltd' class = mass storage subclass = NVM -- Sean Kelly smke...@smkelly.org http://smkelly.org ___

Re: 10.1 NVMe kernel panic

2015-06-02 Thread Sean Kelly
d in a similar way, but i’ve not captured the panic yet. It crashes even without the tunable in place. I’ll see if I can capture it. -- Sean Kelly smke...@smkelly.org http://smkelly.org > On Jun 2, 2015, at 6:10 PM, Jim Harris wrote: > > > > On Thu, May 21, 2015 at 8:33 AM, Sea

10.1 NVMe kernel panic

2015-05-21 Thread Sean Kelly
://smkelly.org/stuff/nvme-panic.txt <http://smkelly.org/stuff/nvme-panic.txt> Anyone have any insight into what the issue may be here? Ideally I need to get this working in the next few days or return this thing to Dell. Thanks! -- Sean Kelly smke...@smkelly.org http://smkel

RE: RELENG_9 panic with PERC 6/i (mfi)

2013-01-02 Thread Sean Kelly
No, it remains an outstanding issue. We've begun moving services to a spare server to give us more time to investigate it. From: Wiley, Glen [gwi...@verisign.com] Sent: Wednesday, January 02, 2013 9:52 AM To: Sean Kelly; Daniel Braniss Cc: freebsd-s

RE: RELENG_9 panic with PERC 6/i (mfi)

2012-12-23 Thread Sean Kelly
ember 23, 2012 1:43 AM To: Sean Kelly Subject: Re: RELENG_9 panic with PERC 6/i (mfi) btw: sysctl -a | grep kmem_map vm.kmem_map_free: 8859570176 vm.kmem_map_size: 6037008384 danny ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/

RELENG_9 panic with PERC 6/i (mfi)

2012-12-22 Thread Sean Kelly
Greetings. I have a Dell R710 with a mfi device (PERC 6/i Integrated) that panics almost immediately on FreeBSD 9. It works fine on FreeBSD 8.2-RELEASE, but I've now had it panic in FreeBSD 9.0-STABLE and 9.1-RELEASE. Output of mfiutil show adapter and panic backtrace below. Anybody seen this o

kern/35004: Can we get this moving?

2002-07-24 Thread Sean Kelly
this list mention the problem denoted in this PR and the PR has been around since February with no progress made. Could somebody please take a look at this and commit it if it is appropriate? -- Sean Kelly | PGP KeyID: 77042C7B [EMAIL PROTECTED] | http://www.zombie.org To Unsubscribe: se

Re: REMINDER: 4.2 code freeze starts tomorrow!

2000-11-01 Thread Sean Kelly
ywhere from one to two 1:00 and 2:00AMs. /usr/src/share/zoneinfo/northamerica: # Rule NAMEFROMTO TYPEIN ON AT SAVELETTER/S RuleUS 1967max - Oct lastSun 2:000 S RuleUS 1987max - Apr Sun>=1

'host' command with CNAMEs

2000-09-19 Thread Sean Kelly
mand never used to behave in this way and I'm not sure if it is a bug with the program itself or the resolver. -- Sean Kelly <[EMAIL PROTECTED]> or <[EMAIL PROTECTED]> PGP KeyID: 4AC781C7http://www.sean-kelly.org To Unsubscribe: send mail to [EMAIL PROTECTED] with &qu