[Bug 864051] Re: TRIM support not enabled for SSDs
** Tags added: precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
I don't have a concrete solution, but gnome-disk-utility (palimpsest), for instance, somehow recognizes that my hard drive is a SSD. This leads me to believe that there is an instruction set already available with which the type of a hard drive can be identified. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
You can detect the disk type from the following file: /sys/block/sda/queue/rotational Just cat it. 1 means it's rotational, 0 means it is an SSD. Just change sda to be the disk you want to inspect. You will also need root privileges to view the file. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
feasty Ok, assuming that this command will detect an SSD with good accuracy, another question is whether enabling TRIM for all SSDs would cause problems for some (e.g. unsupported SSD or server/enterprise SSD). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
I researched it about a year ago now for work and the kernel should probe the hardware to see if it supports TRIM. If it doesn't then it won't use it. It shouldn't cause any problems for people. If anyone knows differently then let me know. I've run disks with the discard option on normal rotational disks without issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
There is a negative performance using TRIM / DISCARD when deleting a folder with a load of small files -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
Looking at the initial commit for TRIM in the kernel I can see that it's calling ata_id_has_trim() and passing in the disks ID. This looks like it filters disks that don't support TRIM. You can see the commit for trim in the 2.6.33 kernel here: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=18f0f97850059303ed73b1f02084f55ca330a80c If you want to investigate the ata_id_has_trim function more closely you can find it in include/linux/ata.h. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
As #10 says, there is a negative performance impact of mounting with discard. Personally I use fstrim in crontab instead. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
How to reliably detect SSD? Is there a performance impact on enabling TRIM for non-SSD drives? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
Yeah I hope the discard command will be enabled by default in 12.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
This bug affects me too. What I expect to happen when I install Ubuntu 12.04 is that it will support the TRIM by automatically entering the 'discard' option in the fstab file. I know you can do this manually but a lot of end-users do not even know how to deal with a terminal. This is a CRITICAL bug, especially when you are a system builder who plans on putting SSDs for even the lowest end hardware. Unless a Newer file system supports this TRIM command automatically, Please (and I mean please for the sake of Linux) fix this. Thank You to all the developers that work on Ubuntu!! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
The only reason we are asking this to be fixed is because some people are uncomfortable using the terminal to enable TRIM on their SSD. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
** Changed in: partman-target (Ubuntu) Importance: Undecided = Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 864051] Re: TRIM support not enabled for SSDs
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: partman-target (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/864051 Title: TRIM support not enabled for SSDs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-target/+bug/864051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
