Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread John R Pierce
Dave wrote: On Thu, Jan 28, 2010 at 12:30 PM, Rudi Ahlers rudiahl...@gmail.com mailto:rudiahl...@gmail.com wrote: let's keep the question simple. WHICH filesystem would be best for this type of operation? SMB, NFS, or iSCSI? As someone said, these are all bad if your channel is

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread Rudi Ahlers
On Fri, Jan 29, 2010 at 9:49 AM, Dave tdbtdb+cen...@gmail.comtdbtdb%2bcen...@gmail.com wrote: On Thu, Jan 28, 2010 at 12:30 PM, Rudi Ahlers rudiahl...@gmail.comwrote: let's keep the question simple. WHICH filesystem would be best for this type of operation? SMB, NFS, or iSCSI? As

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread Geoff Galitz
The CIFS mounts can't be unmounted without a reboot, so they build-up a pool of mounts to the same server which cause extra latency Is there an environmental restriction in your application or organization for this? Normally CIFS mounts can umounted easily in runtime. At any rate...

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread Rudi Ahlers
On Fri, Jan 29, 2010 at 12:12 PM, Geoff Galitz ge...@galitz.org wrote: The CIFS mounts can't be unmounted without a reboot, so they build-up a pool of mounts to the same server which cause extra latency Is there an environmental restriction in your application or organization for

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread Rainer Traut
Am 28.01.2010 12:28, schrieb Rudi Ahlers: NOW, the question is: Which protocol would be best for this? I can only think of SMB, NFS iSCSI How about NFS v4? It only needs one port which you can tunnel through ssh. Rainer ___ CentOS mailing list

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread Kai Schaetzl
Rudi Ahlers wrote on Fri, 29 Jan 2010 12:27:49 +0200: what do you mean by this? exactly as he says. Any mounts can be undone (mount/umount). Maybe not thru your Cpanel, but in reality. Kai -- Get your web at Conactive Internet Services: http://www.conactive.com

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread Joseph L. Casale
Actually I know nothing about iSCSI, maybe it is more robust.  No. Not if, but *when* you get the first disconnection, you will likely incur corruption on the block device. That's like pulling out a disc on a running server. Doesn't make for a dependable backup solution...

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread J.Witvliet
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Rudi Ahlers Sent: Friday, January 29, 2010 12:23 AM To: CentOS mailing list Subject: Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts On Fri, Jan 29, 2010 at 1:18 AM

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread J.Witvliet
At any rate... if I were in your shoes and really restricted to the options you propose, I would go with CIFS mounts through IPSEC tunnels. Wouldn't IPSEC add more overhead than an SSH tunnel? -geoff I would *certainly* not use ssh-tunnels, on a line that is not 100% error free or with high

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread Ross Walker
On Jan 29, 2010, at 2:37 AM, Rudi Ahlers rudiahl...@gmail.com wrote: On Fri, Jan 29, 2010 at 2:17 AM, Ross Walker rswwal...@gmail.com wrote: It's not easy backing up from behind the firewall. What about using a service that will backup the mobile clients to an offsite repository that is

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-29 Thread Les Mikesell
On 1/29/2010 1:37 AM, Rudi Ahlers wrote: Backing up behind the firewall is made easy by using an SSH tunnel :) We already have an offsite backup facility with a 3rd party, but I need more control over the backups, and want to setup an inhouse backup server which where all the client's

[CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rudi Ahlers
Hi, I would like to get some input from people who have used these options for mounting a remote server to a local server. Basically, I need to replicate / backup data from one server to another, but over the internet (i.e. insecure channels) Currently we have been mounting an SMB share over

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rajagopal Swaminathan
Greetings, On Thu, Jan 28, 2010 at 4:58 PM, Rudi Ahlers r...@softdux.com wrote: Hi, NOW, the question is: Which protocol would be best for this? I can only think of SMB, NFS iSCSI Just an innocent and possibly OOB suggestion -- what you think of sshfs Regards Rajagopal

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rudi Ahlers
On Thu, Jan 28, 2010 at 2:05 PM, Rajagopal Swaminathan raju.rajs...@gmail.com wrote: Greetings, On Thu, Jan 28, 2010 at 4:58 PM, Rudi Ahlers r...@softdux.com wrote: Hi, NOW, the question is: Which protocol would be best for this? I can only think of SMB, NFS iSCSI Just an innocent

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Les Mikesell
Rudi Ahlers wrote: Hi, I would like to get some input from people who have used these options for mounting a remote server to a local server. Basically, I need to replicate / backup data from one server to another, but over the internet (i.e. insecure channels) Currently we have

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread nate
Rudi Ahlers wrote: Hi, I would like to get some input from people who have used these options for mounting a remote server to a local server. Basically, I need to replicate / backup data from one server to another, but over the internet (i.e. insecure channels) NFS and CIFS and iSCSI are

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rudi Ahlers
Anytime someone mentions backups, I have a knee-jerk reaction to mention backuppc because it is simple and will likely do anything you need. Docs are here: http://backuppc.sourceforge.net/ It is packaged in epel. It can use rsync (with/without ssh), smb, or tar for the backup transport.

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rudi Ahlers
On Thu, Jan 28, 2010 at 4:04 PM, nate cen...@linuxpowered.net wrote: Rudi Ahlers wrote: Hi, I would like to get some input from people who have used these options for mounting a remote server to a local server. Basically, I need to replicate / backup data from one server to another,

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Les Mikesell
On 1/28/2010 3:01 PM, Rudi Ahlers wrote: Anytime someone mentions backups, I have a knee-jerk reaction to mention backuppc because it is simple and will likely do anything you need. Docs are here: http://backuppc.sourceforge.net/ It is packaged in epel. It can use

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Les Mikesell
On 1/28/2010 3:13 PM, Rudi Ahlers wrote: We used to do it like that - rsync over SSH, but the amount of support calls we got with this solution was just too much. So, instead we mounted the backup volumes on the servers, and the end users (most of them being developers graphic designers)

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rudi Ahlers
On Thu, Jan 28, 2010 at 11:34 PM, Les Mikesell lesmikes...@gmail.comwrote: This is probably getting repetitive, but backuppc provides a web interface where server 'owners' can browse their own backups, select what they want, and click a button to restore or download to their desktop. It's

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Les Mikesell
On 1/28/2010 4:30 PM, Rudi Ahlers wrote: ok, forget about rsync. forget about which backup script is better, and which isn't. forget about how I get the data onto the order server. I don't care about backups, or rsync, or backuppc or bacula or amanda, or R1soft let's keep the question

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread John R Pierce
Rudi Ahlers wrote: let's keep the question simple. WHICH filesystem would be best for this type of operation? SMB, NFS, or iSCSI? ISCSI is not a file system, its purely a block device. works best over fast low latency dedicated links. I think NFS would be better for unix to unix than SMB.

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread nate
Rudi Ahlers wrote: let's keep the question simple. WHICH filesystem would be best for this type of operation? SMB, NFS, or iSCSI? none nate ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread nate
Rudi Ahlers wrote: let's keep the question simple. WHICH filesystem would be best for this type of operation? SMB, NFS, or iSCSI? none nate ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rudi Ahlers
On Fri, Jan 29, 2010 at 1:05 AM, nate cen...@linuxpowered.net wrote: Rudi Ahlers wrote: let's keep the question simple. WHICH filesystem would be best for this type of operation? SMB, NFS, or iSCSI? none nate ___ CentOS mailing list

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rudi Ahlers
On Fri, Jan 29, 2010 at 1:18 AM, nate cen...@linuxpowered.net wrote: Rudi Ahlers wrote: nate, why not? Is it simply unavoidable at all costs to mount on system on another, over a WAN? That's all I really want todo If what you have now works, stick with it.. in general network file

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Les Mikesell
On 1/28/2010 5:13 PM, Rudi Ahlers wrote: nate, why not? Is it simply unavoidable at all costs to mount on system on another, over a WAN? That's all I really want todo You are introducing unpredictable delays and possible retries/disconnects into kernel layers that aren't very well prepared

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Les Mikesell
On 1/28/2010 5:23 PM, Rudi Ahlers wrote: So, is there any benefit in using NFS over SMB in this case? The CIFS mounts can't be unmounted without a reboot, so they build-up a pool of mounts to the same server which cause extra latency I don't understand either of not being able to unmount a

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Ross Walker
On Jan 28, 2010, at 6:23 PM, Rudi Ahlers rudiahl...@gmail.com wrote: On Fri, Jan 29, 2010 at 1:18 AM, nate cen...@linuxpowered.net wrote: Rudi Ahlers wrote: nate, why not? Is it simply unavoidable at all costs to mount on system on another, over a WAN? That's all I really want todo If

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Rudi Ahlers
On Fri, Jan 29, 2010 at 2:17 AM, Ross Walker rswwal...@gmail.com wrote: It's not easy backing up from behind the firewall. What about using a service that will backup the mobile clients to an offsite repository that is accessible also from behind the firewall. I was pitched something not

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Dave
On Thu, Jan 28, 2010 at 12:30 PM, Rudi Ahlers rudiahl...@gmail.com wrote: let's keep the question simple. WHICH filesystem would be best for this type of operation? SMB, NFS, or iSCSI? As someone said, these are all bad if your channel is insecure. Actually I know nothing about iSCSI,

Re: [CentOS] NFS vs SMb vs iSCSI for remote backup mounts

2010-01-28 Thread Christopher Chan
On Friday, January 29, 2010 03:49 PM, Dave wrote: On Thu, Jan 28, 2010 at 12:30 PM, Rudi Ahlers rudiahl...@gmail.com mailto:rudiahl...@gmail.com wrote: let's keep the question simple. WHICH filesystem would be best for this type of operation? SMB, NFS, or iSCSI? As someone said,