On 11/29/12 04:40, Steven Hartland wrote: > Do you have any other disks in the machine if so its likely these are > the source of the unsupported increments. No, not yet. Best regards Johannes > ----- Original Message ----- From: "Johannes Dieterich" > <dieterich.joh_at_gmail.com> > To: <freebsd-current_at_freebsd.org> > Sent: Monday, November 26, 2012 7:48 PM > Subject: Samsung 830 and ZFS TRIM > > >> Hello, >> >> (initially posted this to -questions_at_ a week ago, w/o reply) >> >> I installed CURRENT on a new Thinkpad equipped with a Samsung 830 SSD: >> >> ada0 at ahcich0 bus 0 scbus0 target 0 lun 0 >> ada0: <SAMSUNG SSD 830 Series CXM03B1Q> ATA-9 SATA 3.x device >> ada0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes) >> ada0: Command Queueing enabled >> ada0: 122104MB (250069680 512 byte sectors: 1H 63S/T 16383C) >> ada0: Previously was known as ad4 >> >> as the setup is ZFS+GELI based (on ada0), I enabled ZFS TRIM support >> in loader.conf. >> >> Interestingly, I encounter an IMHO strange behavior with the stats on >> that: >> >> kstat.zfs.misc.zio_trim.zio_trim_bytes: 755712 >> kstat.zfs.misc.zio_trim.zio_trim_success: 97 >> kstat.zfs.misc.zio_trim.zio_trim_unsupported: 7891 >> kstat.zfs.misc.zio_trim.zio_trim_failed: 0 >> >> It seems unintuitive to me why the unsupported counter first increases >> (seems to stay constant after that each boot) and then slowly the >> success counter increases as well. >> >> Probably there is a trivial explanation (GELI?) and/or fix for this >> that anyone is willing to share? >> >> If you need further information, let me know. >> >> Thanks a lot >> >> Johannes >> _______________________________________________ >> freebsd-current_at_freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-current >> To unsubscribe, send any mail to >> "freebsd-current-unsubscribe_at_freebsd.org" >> > > ================================================ > This e.mail is private and confidential between Multiplay (UK) Ltd. and > the person or entity to whom it is addressed. In the event of > misdirection, the recipient is prohibited from using, copying, printing > or otherwise disseminating it or any information contained in it. > In the event of misdirection, illegible or incomplete transmission > please telephone +44 845 868 1337 > or return the E.mail to postmaster_at_multiplay.co.uk. >Received on Thu Nov 29 2012 - 13:10:30 UTC
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