Am 19.10.2013 22:25, schrieb Adam W. Dace: > Huh. I'm running Linux kernel: > > Linux sparkle.adamdace.info <http://sparkle.adamdace.info> > 3.9.3-x86_64-linode33 #1 SMP Mon May 20 10:22:57 EDT > 2013 x86_64 x86_64 x86_64 GNU/Linux > > Does this sound right? I'm thinking of trying to add: > KERNEL=="xvdc",OWNER="nobody" > > to the file /etc/udev/rules.d/60-raw.rules > > One other question...if I get this wrong somehow will my Linux server even > boot?
what are you doing here? you can't add any random crap you need to know the device on that machine and not write "xvdc" in a blackbox the udev-file is supposed to change the owner of the *existing device* at boot and not more but also not less, it would be the same "chown" it in a startup script before ATS mut this way more clean, i am on systemd environments where things are starting parallel so do you have a new, spare disk you can use at RAW disk? what device name has it? ls -lha /dev/ would be a starting point if you do not have a new virtual disk recognized by the kernel taht all make spretty no sense - if you added a virtual disk while the guest system is running maybe reboot it to recognize the new drive before continue doing anything else > On Sat, Oct 19, 2013 at 3:15 PM, Adam W. Dace <[email protected] > <mailto:[email protected]>> wrote: > > 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] > <mailto:[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 > > > > > > > > > -- > ____________________________________________________________ > Adam W. Dace <[email protected] > <mailto:[email protected]>> > > Phone: (815) 355-5848 <tel:%28815%29%20355-5848> > Instant Messenger: AIM & Yahoo! IM - colonelforbin74 | ICQ - #39374451 > Microsoft Messenger - [email protected] <mailto:[email protected]> > > Google Profile: https://plus.google.com/u/0/109309036874332290399/about > > > > > -- > ____________________________________________________________ > Adam W. Dace <[email protected] <mailto:[email protected]>> > > Phone: (815) 355-5848 > Instant Messenger: AIM & Yahoo! IM - colonelforbin74 | ICQ - #39374451 > Microsoft Messenger - [email protected] <mailto:[email protected]> > > Google Profile: https://plus.google.com/u/0/109309036874332290399/about -- Reindl Harald the lounge interactive design GmbH A-1060 Vienna, Hofmühlgasse 17 CTO / CISO / Software-Development m: +43 (676) 40 221 40, p: +43 (1) 595 3999 33 icq: 154546673, http://www.thelounge.net/ http://www.thelounge.net/signature.asc.what.htm
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