For a high-performance system (64-cores, 512GB RAM, 5TB local disk, 110TB
NFS-mounted storage) is there any advantage of dropping lvm and mounting
partitions directly?
We're not planning on changing partition sizes, but if we did we'd probably do
a full rebuild.
Has anyone done performance
[mailto:centos-boun...@centos.org] On Behalf Of
John R Pierce
Sent: Tuesday, 31 July 2012 5:16 p.m.
To: centos@centos.org
Subject: Re: [CentOS] rsync question
On 07/30/12 10:05 PM, Smithies, Russell wrote:
I'm trying to rsync a 8TB data folder containing squillions of small files
and it's
I'm trying to rsync a 8TB data folder containing squillions of small files and
it's taking forever (i.e. weeks) to get anywhere.
I'm assuming the slow bit is check-summing everything with a single CPU (even
though it's on a 12-core server ;-( )
Is it possible to do something simple like scp the
How about using one of the backup tools to image the server?
We use Symantec System Recovery and image all the disks. We then have the
option of restoring to different hardware (physical or virtual) which works
very well.
There's a 60-day evaluation period.
We're looking at using windbind and AD for our user account details but have
run into a small snag. All user accounts in AD are upper case but our linux
accounts are lower-case.
Is there a simple solution we've overlooked?
We really don't want to have to hack this...
Thanx,
Russell SMithies
...@centos.org [mailto:centos-boun...@centos.org] On
Behalf Of Les Mikesell
Sent: Wednesday, 14 March 2012 5:28 p.m.
To: CentOS mailing list
Subject: Re: [CentOS] mount NFS share over specific nic?
On Tue, Mar 13, 2012 at 10:42 PM, Smithies, Russell
russell.smith...@agresearch.co.nz wrote:
I
I have a new server with multiple nics running Centos 6.2 and I'd like to force
all NFS traffic over one nic.
We're using FreeNAS to dish out NFS shares and I have different IPs on my 2
nics but how can I get the server to mount the share over one particular nic?
Or is there a better way to do
Of Les Mikesell
Sent: Wednesday, 14 March 2012 4:30 p.m.
To: CentOS mailing list
Subject: Re: [CentOS] mount NFS share over specific nic?
On Tue, Mar 13, 2012 at 10:15 PM, Fajar Priyanto fajar...@arinet.org
wrote:
On Wed, Mar 14, 2012 at 9:29 AM, Smithies, Russell
russell.smith
Try the Sybase driver.
I can connect Perl to Microsoft SQL Server using Sybase drivers it so might
work with Access.
Parts of this might be useful: http://www.peceny.de/misc/freetds.html
--Russell
-Original Message-
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On
The whole gigabyte vs. gibibyte argument again!
According to IEEE, NIST, and bunch of other organizations, a gigabyte is
1,000,000,000 bytes, and a gibibyte is 1,073,741,824 bytes.
I can't wait until we start dealing with yobibytes!!
--Russell
-Original Message-
From:
-
boun...@centos.org]
| On
| Behalf Of Barry Brimer
| Sent: Friday, 18 November 2011 11:13 a.m.
| To: CentOS mailing list
| Subject: Re: [CentOS] not using LVM for Linux VM guests?
|
| Quoting Smithies, Russell russell.smith...@agresearch.co.nz:
|
| Perhaps I'm doing it wrong
-Original Message-
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On
Behalf Of Jon Detert
Sent: Friday, 18 November 2011 5:13 a.m.
To: CentOS mailing list
Subject: Re: [CentOS] not using LVM for Linux VM guests?
Hello,
- Original Message -
From:
-Original Message-
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On
Behalf Of Paul Griffith
Sent: Friday, 18 November 2011 8:04 a.m.
To: centos@centos.org
Subject: Re: [CentOS] not using LVM for Linux VM guests?
On 11/17/2011 11:13 AM, Jon Detert wrote:
] On
Behalf Of Alexander Dalloz
Sent: Friday, 18 November 2011 9:07 a.m.
To: CentOS mailing list
Subject: Re: [CentOS] not using LVM for Linux VM guests?
Am 17.11.2011 20:25, schrieb Smithies, Russell:
I have the same problem - I can never get the partition table reread
without a reboot.
It's
@centos.org
Subject: Re: [CentOS] not using LVM for Linux VM guests?
Am 17.11.2011 22:36, schrieb Smithies, Russell:
Tried that, as well as rescanning the scsi bus, Everything I've tried
returns a warning about kernel unable to reread partition table and
requiring a reboot to see any
...@centos.org] On
Behalf Of Barry Brimer
Sent: Friday, 18 November 2011 11:13 a.m.
To: CentOS mailing list
Subject: Re: [CentOS] not using LVM for Linux VM guests?
Quoting Smithies, Russell russell.smith...@agresearch.co.nz:
Perhaps I'm doing it wrong then.
1). In Vmware, extend
I came across an old post comment yesterday (from
http://echenh.blogspot.com/2010/04/how-to-extend-lvm-on-vmware-guest-os.html )
discussing the hack of LVM on Linux VM guests and whether it's better not to
use it to simplify disk management.
I've re-posted the comment below, does it sound
I have a lot of data in some vdump files backed up from a Tru64 system that I
now need to recover to a Centos server.
We no longer have any servers running Tru64, is there any way to
extract/convert them on a standard linux system?
Ideally converting in bulk to a tar would do.
Any ideas?
I'll put in a plug for HP Cluster Management Utility
http://h20311.www2.hp.com/HPC/cache/412128-0-0-0-121.html?jumpid=reg_R1002_USEN
We also use C3 - an oldy but a goody :-)
http://www.csm.ornl.gov/torc/C3/index.html
--Russell
-Original Message-
From: centos-boun...@centos.org
This may be more of a general linux question but is there a simple way of
preventing users from creating symlinks to or from certain directories?
I have a /scratch dir that's a single 27TB volume and I don't want users
linking their home dirs as there's a chance it will screw up our external
We have a single 27TB partition (35 x 1TB drives as RAID5+0 in an HP MDS600),
just formatted it xfs and had no problems with it so far.
It's used as scratch space so not too concerned about performance.
--Russell
-Original Message-
From: centos-boun...@centos.org
Are you using anti-static flooring?
I know in our new server room extension there was some very expensive lino that
went down.
This sort of stuff:
http://www.afloor.co.uk/vinyl-flooring-lino/anti-static-flooring.html
--Russell
-Original Message-
From: centos-boun...@centos.org
Not specifically a Centos question but does anyone know how to change the
column widths in top?
I'm in the unique position where I need to be able to see more than .0% CPU
:-)
Thanx,
Russell
===
Attention: The information
Subject: Re: [CentOS] changing column widths in top?
On 04/12/11 2:10 PM, Smithies, Russell wrote:
Not specifically a Centos question but does anyone know how to change
the column widths in top?
I'm in the unique position where I need to be able to see more than
.0% CPU :-)
probably have
.
To: CentOS mailing list
Subject: Re: [CentOS] changing column widths in top?
On Tue, Apr 12, 2011 at 10:35 PM, Smithies, Russell
russell.smith...@agresearch.co.nz wrote:
Thought as much :-(
Atop seems to display much better, currently running at 12728% CPU :-
)
Give htop a try as well; it's
as disrupting it.
--Russell
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of
Cameron Kerr
Sent: Thursday, 17 February 2011 6:18 a.m.
To: CentOS mailing list
Subject: Re: [CentOS] NIC bonding - missing eth0?
On 16/02/2011, at 3:12 PM, Smithies, Russell wrote
I have nic bonding (mode=802.3ad) setup on 2 servers, both running Centos 5.5
In the Active Aggregator Info, on one reports 4 ports - which is correct -
but the other only reports 3 ports.
It's always eth0 that shows a different aggregator ID. Changing the cables
around so it hits a different
supporting 1000Mbps nics?
On Mon, Feb 14, 2011 at 2:34 PM, Smithies, Russell
russell.smith...@agresearch.co.nz wrote:
I've got xen-3.0.3-105.el5_5.5 running on Centos 5.5 and all is
running
smooth but I notice that any VMs running under it only have access to
Realtek RTL8139C at 100 Mbps
I've got xen-3.0.3-105.el5_5.5 running on Centos 5.5 and all is running smooth
but I notice that any VMs running under it only have access to Realtek RTL8139C
at 100 Mbps nics.
We have 4 x 1G nics configured in a port channel so I'd really like to be able
to give my VMs 1000Mbps nics.
Does
Hi all,
I'm just poking thru our previous sysadmin's user adding script and saw
reference to a ~/.forward file containing the users email address.
Any idea what it might be for?
It's a tricky one to Google ;-)
Thanx,
Russell Smithies
I've just setup nic bonding on our server (DL585-G7 running Centos 5.5 x86_64)
as detailed on the wiki: http://wiki.centos.org/TipsAndTricks/BondingInterfaces
and all seems fine but from other howto's I've seen on the web, they're
should be a /proc/net/bond0/info
As far as I can see, I don't
a problem as it's working OK, just odd it's not there.
--Russell
-Original Message-
From: Steve Thompson [mailto:s...@vgersoft.com]
Sent: Monday, 17 January 2011 2:13 p.m.
To: Smithies, Russell
Subject: Re: [CentOS] nic bonding
On Mon, 17 Jan 2011, Smithies, Russell wrote:
I've just
On 1/17/11, Smithies, Russell russell.smith...@agresearch.co.nz
wrote:
Afraid not, no /proc/net/bonding either.
This is all I can see:
[root@inbfop03 ~]# find / -name bonding 2/dev/null
/lib/modules/2.6.18-194.32.1.el5/kernel/drivers/net/bonding
/lib/modules/2.6.18-194.el5/kernel
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