Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

Le 06/08/17 à 12:55, Petter Reinholdtsen a écrit : [Laurent Bigonville] The discards commands will also be issued when shrinking or moving a LV to an other PV, if something is going wrong during these operations, the data will be lost. So it's not only when explicitly removing an LV. Aha. I

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

[Laurent Bigonville] > The discards commands will also be issued when shrinking or moving a LV > to an other PV, if something is going wrong during these operations, the > data will be lost. > > So it's not only when explicitly removing an LV. Aha. I did not have the imagination required to

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

Le 06/08/17 à 10:50, Bastian Blank a écrit : On Sun, Aug 06, 2017 at 09:16:55AM +0200, Petter Reinholdtsen wrote: A while back, I created a deb named ssd-setup to automatically set up Debian for a SSD disk. Until I understand more about the LVM issue, I automatically enable issue_discards=1 in

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

[Bastian Blank] > In general it is a bad idea. I belive this is not clear enough from the documentation and the instructions on http://wiki.debian.org/SSDOptimization >. But I am unsure how to make it more clear. :/ I must admit that describe my

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

On Sun, Aug 06, 2017 at 09:16:55AM +0200, Petter Reinholdtsen wrote: > A while back, I created a deb named ssd-setup to automatically set up Debian > for > a SSD disk. Until I understand more about the LVM issue, I automatically > enable issue_discards=1 in >

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

[Laurent Bigonville] > What I understand from this bug and Zdenek (who is apparently LVM2 upstream) > message is that by default the discard requests are already passed to the > underlying device during regular operation, this was definitely not really > clear in my head, maybe this should be

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

On Fri, 19 Jul 2013 10:43:11 +0200 Petter Reinholdtsen wrote: > > Hi. Hello, > According to several recipes on how to set up Linux on a SSD disk, LVM > need to be reconfigured to issue discard (aka TRIM) instructions to the > underlying storage device. This is done by

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

On Sun, 20 Dec 2015 12:50:55 -0800 Matt Taggart wrote: I agree that "issue_discards = 1" should become the default in lvm on Debian. There is a case where you might not want TRIM/discards, there are security implications to enabling it with dm-crypt. In the commit message

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

Hi, > Using 'issue_discards=1' makes any lvremove operation 'irreversible' on > SSD - so using 'vgcfgretore' cannot then fix the mistake of admin when > he removes LV and he would like to get it back - since restoring TRIMED > space is just pointless. > > So 'default' being 0 is carefully

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

I agree that "issue_discards = 1" should become the default in lvm on Debian. There is a case where you might not want TRIM/discards, there are security implications to enabling it with dm-crypt. In the commit message which added this support, the author states: Note that discard will be

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

[Martin Pitt 2013-12-13] > The documentation says that the option has no effect if the kernel or > the drive don't support it, so I don't see why we shouldn't just > enable this by default? Right. Then perhaps the Debian maintainers of lvm2 can change the default, to make Debian better for us

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

tag 717313 patch thanks Petter Reinholdtsen [2013-07-19 10:43 +0200]: According to several recipes on how to set up Linux on a SSD disk, LVM need to be reconfigured to issue discard (aka TRIM) instructions to the underlying storage device. This is done by modifying /etc/lvm/lvm.conf and

Bug#717313: lvm2: Enable issue_discards = 1 automatically on non-rotational (SSD) disks?

Package: lvm2 Version: 2.02.95-7 Severity: wishlist Hi. According to several recipes on how to set up Linux on a SSD disk, LVM need to be reconfigured to issue discard (aka TRIM) instructions to the underlying storage device. This is done by modifying /etc/lvm/lvm.conf and setting