Re: [CentOS] clustered file system of choice

2010-06-17 Thread Raja Subramanian
On Thu, Jun 17, 2010 at 1:03 AM, Boris Epstein wrote: > I am just trying to consider my options for storing a large mass of > data (tens of terrabytes of files) and one idea is to build a > clustered FS of some kind. Has anybody had any experience with that? > Any recommendations? You need a shar

Re: [CentOS] Installing on partitionable RAID arrays

2009-03-26 Thread Raja Subramanian
On Thu, Mar 26, 2009 at 5:42 PM, RedShift wrote: > Since linux 2.6, the md layer has a feature called partitionable arrays. So > instead of having two disks, creating an identical partition table on both > and then putting those partitions in RAID 1, you take those two disks and put > them in o

Re: [CentOS] Getting perl CGI programs to work on CentOS 5 server

2008-09-22 Thread Raja Subramanian
On Mon, Sep 22, 2008 at 9:18 PM, Andrew Allen <[EMAIL PROTECTED]> wrote: > This has worked absolutely fine in the past, but now when I invoke it, > either nothing appears in the browser (Mozilla Firefox) or I get > "Internal Server Error" - any ideas please? Check your web server logs to find out

[CentOS] Multiple LVM snapshots

2008-07-11 Thread Raja Subramanian
I have a Centos 5.2 fileserver running LVM2, ext3 and Samba. I want to periodically snapshot a filesystem and offer them as read only backups to my users. I'm looking for something similar to what's available on Netapp filers. I am successfully able to create snapshots using LVM. But are there any

Re: [CentOS] dm-multipath use

2008-06-25 Thread Raja Subramanian
On Wed, Jun 25, 2008 at 11:19 PM, Geoff Galitz <[EMAIL PROTECTED]> wrote: > Are folks in the Centos community succesfully using device-mapper-multipath? I have a couple of CentOS 5.1 servers connected to a dual controller Hitachi SMS 100 array. Both iscsi and multipath are with failover are all w

Re: [CentOS] recommendations for copying large filesystems

2008-06-22 Thread Raja Subramanian
On Sun, Jun 22, 2008 at 3:36 AM, Rainer Duffner <[EMAIL PROTECTED]> wrote: > Now that I know the details - I don' think this is going to work. Not with > 100 TB of data. It kind-of-works with 1 TB. > Can anybody comment on the feasibility of rsync on 1 million files? rsync always broke on my files

Re: [CentOS] lvm with iscsi devices on boot

2008-06-22 Thread Raja Subramanian
On Fri, Jun 20, 2008 at 1:04 AM, Ross S. W. Walker <[EMAIL PROTECTED]> wrote: > I think the key here is to add the _netdev option in fstab for > those filesystems over iSCSI, even using LVM. I got a chance to reboot the server this weekend and happy to report that my iscsi/multipath/lvm volumes ar

[CentOS] lvm with iscsi devices on boot

2008-06-19 Thread Raja Subramanian
Hi All, My CentOS 5.1 server is using iSCSI attached disks connecting to a dual controller storage array. I have also configured multipathd to manage the multiple paths. Everything works well, and on boot the dev nodes are automatically created in /dev/mapper. On these devices, I have created lo