I actually tried using MAKEDEV to create /dev/xvdc, chowned it to "nobody",
and then have ATS use that.
Unfortunately, then ATS gives me this error:
[Oct 19 13:13:55.782] Server {0x2aaaab113f60} WARNING: unable to open
'/dev/xvdc': -6, No such device or address
[Oct 19 13:13:55.782] Server {0x2aaaab113f60} WARNING: could not initialize
storage "/dev/xvdc" [unable to open]
[Oct 19 13:13:55.782] Server {0x2aaaab113f60} WARNING: no cache disks
specified in /usr/local/etc/trafficserver/storage.config: cache disabled
Any ideas? I feel like I'm missing something.
On Sat, Oct 19, 2013 at 3:06 PM, Reindl Harald <[email protected]>wrote:
>
> Am 19.10.2013 21:39, schrieb Adam W. Dace:
> > This is really more of a Linux virtualization question, but I'd rather
> ask you people than bother the hosting
> > company if possible.
> >
> > First off, I was completely wrong about raw disk being available. My
> apologies, I should've checked. That part is
> > simple...they have a nice web GUI for that.
> >
> > Virtualization Software: Xen
> > Host OS: CentOS 6.4
> >
> > What I'm stuck on is how do I access a raw disk volume from Linux?
> >
> > If it helps, my /etc/fstab looks like this:
> >
> > /dev/xvda / ext3 noatime,errors=remount-ro
> 0 1
> > /dev/xvdb none swap sw
> 0 0
> > /proc /proc proc defaults
> 0 0
> > tmpfs /dev/shm tmpfs nodev,nosuid,noexec
> 0 0
> > devpts /dev/pts devpts gid=5,mode=620
> 0 0
> > sysfs /sys sysfs defaults
> 0 0
>
> you do not need it to acess from linux nor doe sit appear in fstab or df
> output
> that is why it is called RAW disk, it is unformatted and under application
> control
>
> in the case below (from production) the whole /dev/sdc disk is assigend
> to ATS and the udev-rule is needed to allow the ATS user write access
>
> nobody and nothig but ATS will ever access this drive
> _____________________________________
>
> [root@proxy:~]$ df
> Dateisystem Typ Größe Benutzt Verf. Verw% Eingehängt auf
> /dev/sdb1 ext4 5,8G 668M 5,2G 12% /
> /dev/sda1 ext4 493M 34M 456M 7% /boot
> _____________________________________
>
> [root@proxy:~]$ cat /etc/trafficserver/storage.config
> # Storage Configuration file
>
> # /etc/udev/rules.d/50-ats.rules
> # Apache Traffic Server owns disk for RAW access
> # KERNEL=="sdc", OWNER="ats"
>
> /dev/sdc
> _____________________________________
>
> [root@proxy:~]$ ls /dev/ | grep sd
> brw-rw---- 1 root disk 8, 0 2013-10-11 19:36 sda
> brw-rw---- 1 root disk 8, 1 2013-10-11 19:36 sda1
> brw-rw---- 1 root disk 8, 16 2013-10-11 19:36 sdb
> brw-rw---- 1 root disk 8, 17 2013-10-11 19:36 sdb1
> brw------- 1 ats root 8, 32 2013-10-19 22:05 sdc
>
>
>
>
>
>
--
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Adam W. Dace <[email protected]>
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