On Wed, Jul 17, 2013 at 9:23 AM, Joshua Mesilane <joshuam@xxxxxxxxxxxxxxxxx> wrote:
My understanding of the issue is that for the actual cluster it's self, it should be ok.
I could be wrong here, but I thought the kernel module was only specifically for mounting cephfs (And even then, there's a fuse module that you *can* use anyway)
There are two kernel modules: rbd.ko and ceph.ko. One is for rbd, the other is for cephfs.
$ modinfo rbd
filename: /lib/modules/3.9.6-200.fc18.x86_64/kernel/drivers/block/rbd.ko
license: GPL
author: Jeff Garzik <jeff@xxxxxxxxxx>
description: rados block device
author: Yehuda Sadeh <yehuda@xxxxxxxxxxxxxxx>
author: Sage Weil <sage@xxxxxxxxxxxx>
depends: libceph
intree: Y
vermagic: 3.9.6-200.fc18.x86_64 SMP mod_unload
$ modinfo ceph
filename: /lib/modules/3.9.6-200.fc18.x86_64/kernel/fs/ceph/ceph.ko
license: GPL
description: Ceph filesystem for Linux
author: Patience Warnick <patience@xxxxxxxxxxxx>
author: Yehuda Sadeh <yehuda@xxxxxxxxxxxxxxx>
author: Sage Weil <sage@xxxxxxxxxxxx>
alias: fs-ceph
depends: libceph
intree: Y
vermagic: 3.9.6-200.fc18.x86_64 SMP mod_unload
$ modinfo rbd
filename: /lib/modules/3.9.6-200.fc18.x86_64/kernel/drivers/block/rbd.ko
license: GPL
author: Jeff Garzik <jeff@xxxxxxxxxx>
description: rados block device
author: Yehuda Sadeh <yehuda@xxxxxxxxxxxxxxx>
author: Sage Weil <sage@xxxxxxxxxxxx>
depends: libceph
intree: Y
vermagic: 3.9.6-200.fc18.x86_64 SMP mod_unload
$ modinfo ceph
filename: /lib/modules/3.9.6-200.fc18.x86_64/kernel/fs/ceph/ceph.ko
license: GPL
description: Ceph filesystem for Linux
author: Patience Warnick <patience@xxxxxxxxxxxx>
author: Yehuda Sadeh <yehuda@xxxxxxxxxxxxxxx>
author: Sage Weil <sage@xxxxxxxxxxxx>
alias: fs-ceph
depends: libceph
intree: Y
vermagic: 3.9.6-200.fc18.x86_64 SMP mod_unload
--
On 07/17/2013 11:18 AM, Chen, Xiaoxi wrote:
Hi list,
I would like to ask if anyone really run Ceph on CentOS/RHEL? Since the kernel version for Cent/RHEL is much older than that of Ubuntu, I am thinking about whether we have some known performance/functionality issue?
Thanks for everyone could share your insight for Ceph+CentOS.
Xiaoxi
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josh mesilane
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Asias
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