RHCS is a good solution. I have just finished teaching it to one of Cisco's
development teams today. If you understand its abilities and limitations,
you can live happily with it.
OCFS2 solves the mount/disk management issues with HA clusters. However, it
does not solve application and access lock
On 23 August 2010 14:47, Etzion Bar-Noy wrote:
> Adding LUNs does not require a reboot. Removing ones do. However, if you
> let the cluster software manage all disk mount operations, as it should,
> multiple-mounts will never happen, so no need for any special masking, but
> only letting the clus
Again, inline.
On Mon, Aug 23, 2010 at 2:46 AM, Amos Shapira wrote:
> On 23 August 2010 04:42, Etzion Bar-Noy wrote:
> >
> > Inline
> >
> > On Sun, Aug 22, 2010 at 4:41 PM, Amos Shapira
> wrote:
> >>
> >> Yes. But apart from hoping that RHCS does its job right, there is
> >> nothing preventing
On 23 August 2010 04:42, Etzion Bar-Noy wrote:
>
> Inline
>
> On Sun, Aug 22, 2010 at 4:41 PM, Amos Shapira wrote:
>>
>> Yes. But apart from hoping that RHCS does its job right, there is
>> nothing preventing other guests from mounting the same partition in
>> parallel.
>>
> Of course there is -
Inline
On Sun, Aug 22, 2010 at 4:41 PM, Amos Shapira wrote:
> On 22 August 2010 23:22, Oleg Goldshmidt wrote:
> >
> > On Sun, Aug 22, 2010 at 2:25 PM, Amos Shapira
> wrote:
> >
> > > We are a little concerned about the situation of two guests mounting
> > > the ext3 and starting to manipulate t
On 22 August 2010 23:22, Oleg Goldshmidt wrote:
>
> On Sun, Aug 22, 2010 at 2:25 PM, Amos Shapira wrote:
>
> > We are a little concerned about the situation of two guests mounting
> > the ext3 and starting to manipulate the sqlite files on it in
> > parallel.
>
> I think you should be *very* conc
Because it is.
Not in a way you will suffer physical damage. Your legs will be fine, and so
will be your hands.
Your data, on the other hand, will probably be very unhealthy...
Anyhow, RHCS, as a clustering infrastructure, should allow you to solve this
problem with minimal chance of human error.
Thinking about it, in this case there doesn't seem to be any gain in using
AoE or iSCSI over NFS. NFS is far from being perfect, but it takes care of
the shared FS, and since the network spped is the bottleneck here...
(reposted to all, my apologies)
On Sun, Aug 22, 2010 at 3:22 PM, Oleg Goldshmid
On Sun, Aug 22, 2010 at 2:25 PM, Amos Shapira wrote:
> We are a little concerned about the situation of two guests mounting
> the ext3 and starting to manipulate the sqlite files on it in
> parallel.
I think you should be *very* concerned about the situation where 2
guests mount an ext3 partitio
On 22 August 2010 15:27, Etzion Bar-Noy wrote:
>
> I think OCFS2 is slightly better.
> Listen - if you don't need clustered filesystem, avoid it at any cost.
> However, if you do need it, then A/P cluster is not enough.
We are a little concerned about the situation of two guests mounting
the ext
On Sat, 21 Aug 2010 01:30:58 Lior Kaplan wrote:
>
> The RedHat way:
> http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Deployment_Guide/s1-kernel-modules-persistant.html
I think this is the OLD RedHat way.
Look at snippet from /etc/rc.sysinit of CentOS 5.5:
# Load other user
I think OCFS2 is slightly better.
Listen - if you don't need clustered filesystem, avoid it at any cost.
However, if you do need it, then A/P cluster is not enough.
Ez
On Sun, Aug 22, 2010 at 12:01 AM, Amos Shapira wrote:
> 2010/8/22 Etzion Bar-Noy
>
> Indeed.
>> The easiest to implement, amon
2010/8/22 Etzion Bar-Noy
> Indeed.
> The easiest to implement, amongst the free clustered filesystems is OCFS2
> by Oracle. Two or three RPMs, a short configuration phase, and you're fine.
>
How is its performance?
GFS comes as part of RHEL/CentOS base, so nothing special needs to be done
to wo
Indeed.
The easiest to implement, amongst the free clustered filesystems is OCFS2 by
Oracle. Two or three RPMs, a short configuration phase, and you're fine.
Ez
On Sat, Aug 21, 2010 at 4:20 PM, Oleg Goldshmidt wrote:
> Hetz Ben Hamo writes:
>
> > I just wonder about one thing which I haven't f
Hetz Ben Hamo writes:
> I just wonder about one thing which I haven't found a solution (yet)
> for it: I mounted the aoe on 2 machines and I see the shared
> partition from the server. So far, so good.
>
> But any change that I do on any machine is not being seen on the
> other one.
>
> Anyone kn
Thanks for the info.
I just wonder about one thing which I haven't found a solution (yet) for it:
I mounted the aoe on 2 machines and I see the shared partition from the
server. So far, so good.
But any change that I do on any machine is not being seen on the other one.
Anyone knows anything about
-- Forwarded Message --
Subject: Re: official way to load aoe module?
Date: Saturday 21 August 2010, 12:21:37
From: "Etzion Bar-Noy"
To: Shlomi Fish
Insert into /etc/modprobe.conf the line:
alias scsi_hostadapter2 aoe
Rebuild your initrd using mkinitrd, and
Oops. Reply all is better.
Insert into /etc/modprobe.conf the line:
alias scsi_hostadapter2 aoe
Rebuild your initrd using mkinitrd, and it will be available on startup.
Ez
On Sat, Aug 21, 2010 at 11:23 AM, Shlomi Fish wrote:
> On Saturday 21 August 2010 01:20:26 Hetz Ben Hamo wrote:
> > Hi,
>
On Saturday 21 August 2010 01:20:26 Hetz Ben Hamo wrote:
> Hi,
> I'm trying to write a small mini-guide about AoE. So far, so good..
>
> The problem I'm facing is simple: what is the official way to autoload a
> module such aoe in distributions like CentOS/RedHat? I can put a simple
> modprobe lin
Weird, they don't even create the file.
Thank you Lior.
Hetz
2010/8/21 Lior Kaplan
> The RedHat way:
> http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Deployment_Guide/s1-kernel-modules-persistant.html
>
> Kaplan
>
> 2010/8/21 Hetz Ben Hamo
>
>> Hi,
>> I'm trying to write a
The RedHat way:
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Deployment_Guide/s1-kernel-modules-persistant.html
Kaplan
2010/8/21 Hetz Ben Hamo
> Hi,
> I'm trying to write a small mini-guide about AoE. So far, so good..
>
> The problem I'm facing is simple: what is the offic
Hi,
I'm trying to write a small mini-guide about AoE. So far, so good..
The problem I'm facing is simple: what is the official way to autoload a
module such aoe in distributions like CentOS/RedHat? I can put a simple
modprobe line in rc.local but that doesn't look like a clean way..
Any suggestio
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