Thanks for the messages,
I have change the open-iscsi settings with Citrix Perfomance settings, and
i have set the blockdev to 16384, i see more perfomance.
But the first dir or commando on the dir, give the same slow perfomace, it
wil be taken more than 30 secondes.
We not running any nis or
Thanks for the messages,
I have change the open-iscsi settings with Citrix Perfomance settings, and
i have set the blockdev to 16384, i see more perfomance.
But the first dir or commando on the dir, give the same slow perfomace, it
wil be taken more than 30 secondes.
We not running any nis or
Does "man blktrace" sound useful to you? With this command and others you can
produce "funny output" like this:
9-1 AW271 68123744 16 153.802866844 1 1057 xfsbufd/dm-12
9-1 QW272 68123744 16 153.802871575 1 1057 xfsbufd/dm-12
9-1 AW273 16187603
Setup iSCSI on CentOS7. Mounted a iSCSI disk and am running a small MySQL
instance on the disk. The iSCSI disk and MySQL instance all come online
fine with booting but when shutting down things seem to get very upset and
the drive does not get unmounted cleanly.
Does not look like I'm the only
I'm not familiar with CentOS. Does you iscsi-utils package have any systemd
unit files, i.e. is the version of open-iscsi you are using integrated with
systemd?
On Tuesday, December 9, 2014 7:28:52 AM UTC-8, awidde...@hotmail.com wrote:
>
> Setup iSCSI on CentOS7. Mounted a iSCSI disk and am run
Yes, it does. These are the two main unit files provided for open-iscsi.
The first is to log in/out of all "automatic" targets on startup/shutdown:
[Unit]
Description=Login and scanning of iSCSI devices
Documentation=man:iscsid(8) man:iscsiadm(8)
DefaultDependencies=no
Conflicts=shutdown.target
A
On 12/09/2014 07:28 AM, awiddersh...@hotmail.com wrote:
Setup iSCSI on CentOS7. Mounted a iSCSI disk and am running a small
MySQL instance on the disk. The iSCSI disk and MySQL instance all come
online fine with booting but when shutting down things seem to get very
upset and the drive does not g
Sorry, I didn't post the fstab entry in my original post when I should
have. The "_netdev" entry is being applied to the disk and it seems like
systemd generator is seeing that option properly and creating the mount
point correctly (or so I think). Here is the fstab entry:
LABEL=/iscsi-disk
It seems clear that the I/O error is because iscsi is stopped before the
device is unmounted:
On Tuesday, December 9, 2014 7:28:52 AM UTC-8, awidde...@hotmail.com wrote:
>
> Setup iSCSI on CentOS7. Mounted a iSCSI disk and am running a small MySQL
> instance on the disk. The iSCSI disk and MySQL
I have tried this same process without any services running on the iSCSI
drive and it seems to unmount without issue. Probably because nothing is
trying to write to it so no I/O issues would arise.
I agree with your log analysis that it doesn't seem like the order
requested by the iscsi, iscsi
Okay, I'm no systemd expert, though I play one at work. :)
You might try adding this to your mysql unit file:
[Unit]
Description=MySQL Server
-After=nss-lookup.target network.target remote-fs.target time-sync.target
-Wants=nss-lookup.target network.target remote-fs.target time-sync.target
+Afte
Thanks for the feedback and suggestion. I'm fairly certain (haven't
actually tried though) that adding iscsi-disk.mount or even iscsi.target to
the "After=" of the MySQL service would probably solve this problem I don't
think it's a good solution.
Just to start, I don't think the MySQL package
On Dec 9, 2014, at 3:30 PM, awiddersh...@hotmail.com wrote:
>
> Thanks for the feedback and suggestion. I'm fairly certain (haven't actually
> tried though) that adding iscsi-disk.mount or even iscsi.target to the
> "After=" of the MySQL service would probably solve this problem I don't think
>
I'm not sure if it is the unit files, iscsi or even systemd itself that is
the problem. It all seems very strange to me right now. I certainly will
post back if it is an open-iscsi issue. As I said, doesn't really seem like
the unit files and their requirements are misconfigured. My hunch is
so
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