Re: Problems adding Intel 750 to zfs pool
Be aware that kern.geom.dev.delete_max_sectors will still come into play here hence the large request will still get chunked. This is good to prevent excessively long running individual BIO's which would result in user operations being uncancelable. Regards Steve On 21/07/2015 22:29, dy...@techtangents.com wrote: Jim Harris mailto:jim.har...@gmail.com 22 July 2015 6:54 am Hi Dylan, I just committed SVN r285767 which should fix this issue. I will request MFC to stable/10 after the 3 day waiting period. Thanks, -Jim Love your work, Jim! Thank you. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: Problems adding Intel 750 to zfs pool
Jim Harris mailto:jim.har...@gmail.com 22 July 2015 6:54 am Hi Dylan, I just committed SVN r285767 which should fix this issue. I will request MFC to stable/10 after the 3 day waiting period. Thanks, -Jim Love your work, Jim! Thank you. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: Problems adding Intel 750 to zfs pool
On Fri, Jul 17, 2015 at 9:35 PM, dy...@techtangents.com dy...@techtangents.com wrote: Hi, I've installed an Intel 750 400GB NVMe PCIe SSD in a Dell R320 running FreeBSD 10.2-beta-1... not STABLE, but not far behind, I think. Apologies if this is the wrong mailing list, or if this has been fixed in STABLE since the beta. Anyway, I've gparted it into 2 partitions - 16GB for slog/zil and 357GB for l2arc. Adding the slog partition to the pool takes about 2 minutes - machine seems hung during that time. Ping works, but I can't open another ssh session. Adding the l2arc doesn't seem to complete - it's been going 10 minutes now and nothing. Ping works, but I can't log in to the local console or another ssh session. I'm adding the partitions using their gpt names. i.e. zpool add zroot log gpt/slog zpool add zroot cache gpt/l2arc The system BIOS is up-to-date. The OS was a fresh 10.1 install, then freebsd-update to 10.2-beta2. 10.1 exhibited the same symptoms. Root is on zfs. Device was tested to be working on Windows 8.1 on a Dell T1700 workstation. Any ideas? Hi Dylan, I just committed SVN r285767 which should fix this issue. I will request MFC to stable/10 after the 3 day waiting period. Thanks, -Jim Cheers, Dylan Just ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: Problems adding Intel 750 to zfs pool
This will almost certainly be due to slow TRIM support on the device. Try setting the sysctl vfs.zfs.vdev.trim_on_init to 0 before adding the devices. On 18/07/2015 05:35, dy...@techtangents.com wrote: Hi, I've installed an Intel 750 400GB NVMe PCIe SSD in a Dell R320 running FreeBSD 10.2-beta-1... not STABLE, but not far behind, I think. Apologies if this is the wrong mailing list, or if this has been fixed in STABLE since the beta. Anyway, I've gparted it into 2 partitions - 16GB for slog/zil and 357GB for l2arc. Adding the slog partition to the pool takes about 2 minutes - machine seems hung during that time. Ping works, but I can't open another ssh session. Adding the l2arc doesn't seem to complete - it's been going 10 minutes now and nothing. Ping works, but I can't log in to the local console or another ssh session. I'm adding the partitions using their gpt names. i.e. zpool add zroot log gpt/slog zpool add zroot cache gpt/l2arc The system BIOS is up-to-date. The OS was a fresh 10.1 install, then freebsd-update to 10.2-beta2. 10.1 exhibited the same symptoms. Root is on zfs. Device was tested to be working on Windows 8.1 on a Dell T1700 workstation. Any ideas? Cheers, Dylan Just ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: Problems adding Intel 750 to zfs pool
I wonder if this is connected to NVMe? Our SATA Intel DC S3500 drives (which are not that different to the 750s) TRIM much more quickly. What does camcontrol think the secure erase time should be? For a 600GB S3500 camcontrol accurately gives the secure erase time as 4 minutes: # camcontrol security ada0 erase time4 min enhanced erase time 4 min Trimming drives before addition to a system is definitely worthwhile. Will On 20 Jul 2015, at 10:28, Steven Hartland kill...@multiplay.co.uk wrote: This will almost certainly be due to slow TRIM support on the device. Try setting the sysctl vfs.zfs.vdev.trim_on_init to 0 before adding the devices. On 18/07/2015 05:35, dy...@techtangents.com wrote: Hi, I've installed an Intel 750 400GB NVMe PCIe SSD in a Dell R320 running FreeBSD 10.2-beta-1... not STABLE, but not far behind, I think. Apologies if this is the wrong mailing list, or if this has been fixed in STABLE since the beta. Anyway, I've gparted it into 2 partitions - 16GB for slog/zil and 357GB for l2arc. Adding the slog partition to the pool takes about 2 minutes - machine seems hung during that time. Ping works, but I can't open another ssh session. Adding the l2arc doesn't seem to complete - it's been going 10 minutes now and nothing. Ping works, but I can't log in to the local console or another ssh session. I'm adding the partitions using their gpt names. i.e. zpool add zroot log gpt/slog zpool add zroot cache gpt/l2arc The system BIOS is up-to-date. The OS was a fresh 10.1 install, then freebsd-update to 10.2-beta2. 10.1 exhibited the same symptoms. Root is on zfs. Device was tested to be working on Windows 8.1 on a Dell T1700 workstation. Any ideas? Cheers, Dylan Just ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: Problems adding Intel 750 to zfs pool
Those figures are often inaccurate as the actual results can vary wildly based of if the device FW thinks there is actual data on the sectors being TRIM'ed. Regards Steve On 20/07/2015 12:06, Will Green wrote: I wonder if this is connected to NVMe? Our SATA Intel DC S3500 drives (which are not that different to the 750s) TRIM much more quickly. What does camcontrol think the secure erase time should be? For a 600GB S3500 camcontrol accurately gives the secure erase time as 4 minutes: # camcontrol security ada0 erase time4 min enhanced erase time 4 min Trimming drives before addition to a system is definitely worthwhile. Will On 20 Jul 2015, at 10:28, Steven Hartland kill...@multiplay.co.uk wrote: This will almost certainly be due to slow TRIM support on the device. Try setting the sysctl vfs.zfs.vdev.trim_on_init to 0 before adding the devices. On 18/07/2015 05:35, dy...@techtangents.com wrote: Hi, I've installed an Intel 750 400GB NVMe PCIe SSD in a Dell R320 running FreeBSD 10.2-beta-1... not STABLE, but not far behind, I think. Apologies if this is the wrong mailing list, or if this has been fixed in STABLE since the beta. Anyway, I've gparted it into 2 partitions - 16GB for slog/zil and 357GB for l2arc. Adding the slog partition to the pool takes about 2 minutes - machine seems hung during that time. Ping works, but I can't open another ssh session. Adding the l2arc doesn't seem to complete - it's been going 10 minutes now and nothing. Ping works, but I can't log in to the local console or another ssh session. I'm adding the partitions using their gpt names. i.e. zpool add zroot log gpt/slog zpool add zroot cache gpt/l2arc The system BIOS is up-to-date. The OS was a fresh 10.1 install, then freebsd-update to 10.2-beta2. 10.1 exhibited the same symptoms. Root is on zfs. Device was tested to be working on Windows 8.1 on a Dell T1700 workstation. Any ideas? Cheers, Dylan Just ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: Problems adding Intel 750 to zfs pool
I found this: https://lists.freebsd.org/pipermail/freebsd-fs/2015-February/020828.html Seems to be related to vfs.zfs.vdev.trim_on_init - I turn this off and it adds immediately. dy...@techtangents.com mailto:dy...@techtangents.com 18 July 2015 2:35 pm Hi, I've installed an Intel 750 400GB NVMe PCIe SSD in a Dell R320 running FreeBSD 10.2-beta-1... not STABLE, but not far behind, I think. Apologies if this is the wrong mailing list, or if this has been fixed in STABLE since the beta. Anyway, I've gparted it into 2 partitions - 16GB for slog/zil and 357GB for l2arc. Adding the slog partition to the pool takes about 2 minutes - machine seems hung during that time. Ping works, but I can't open another ssh session. Adding the l2arc doesn't seem to complete - it's been going 10 minutes now and nothing. Ping works, but I can't log in to the local console or another ssh session. I'm adding the partitions using their gpt names. i.e. zpool add zroot log gpt/slog zpool add zroot cache gpt/l2arc The system BIOS is up-to-date. The OS was a fresh 10.1 install, then freebsd-update to 10.2-beta2. 10.1 exhibited the same symptoms. Root is on zfs. Device was tested to be working on Windows 8.1 on a Dell T1700 workstation. Any ideas? Cheers, Dylan Just ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Problems adding Intel 750 to zfs pool
Hi, I've installed an Intel 750 400GB NVMe PCIe SSD in a Dell R320 running FreeBSD 10.2-beta-1... not STABLE, but not far behind, I think. Apologies if this is the wrong mailing list, or if this has been fixed in STABLE since the beta. Anyway, I've gparted it into 2 partitions - 16GB for slog/zil and 357GB for l2arc. Adding the slog partition to the pool takes about 2 minutes - machine seems hung during that time. Ping works, but I can't open another ssh session. Adding the l2arc doesn't seem to complete - it's been going 10 minutes now and nothing. Ping works, but I can't log in to the local console or another ssh session. I'm adding the partitions using their gpt names. i.e. zpool add zroot log gpt/slog zpool add zroot cache gpt/l2arc The system BIOS is up-to-date. The OS was a fresh 10.1 install, then freebsd-update to 10.2-beta2. 10.1 exhibited the same symptoms. Root is on zfs. Device was tested to be working on Windows 8.1 on a Dell T1700 workstation. Any ideas? Cheers, Dylan Just ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
