Hi,
I am still without a solution for disc mirroring....
Let me explain the setup once again.
I have 2 identical PCs (same Motherboard, RAM, Processor). -- using FC9 1st one is a Primary server which is ON all the site. 2nd one is a Backup server which is only switched on when BACKUP is being taken. Rest of the time its switched off.
I need to create an identical copy of the HDD of Primary PC on Sec PC.
I tried Disc Image software -- "g4l". When I restore the image on the Sec PC's HDD, there is a MAC address. Is there any way to solve this problem ?
Apart from RSync, is there any way to mirror DISC of 1st PC on the 2nd PC? And in such a scenario, how to address MAC address conflict issue ?
Ideally, I would like a solution with least human interaction when PRI crashes and Backup PC has to be used.
Pls help me! Thx
On 18-Sep-09, at 3:16 PM, RSCL Mumbai wrote:
Hi,
I am still without a solution for disc mirroring....
Let me explain the setup once again.
I have 2 identical PCs (same Motherboard, RAM, Processor). -- using FC9 1st one is a Primary server which is ON all the site. 2nd one is a Backup server which is only switched on when BACKUP is being taken. Rest of the time its switched off.
I need to create an identical copy of the HDD of Primary PC on Sec PC.
I tried Disc Image software -- "g4l". When I restore the image on the Sec PC's HDD, there is a MAC address. Is there any way to solve this problem ?
Apart from RSync, is there any way to mirror DISC of 1st PC on the 2nd PC? And in such a scenario, how to address MAC address conflict issue ?
You can try mirrordir. It should be in repos or else you can google it. mirrordir makes an identical copy of whatever directory you want [ In your case / ]
Regards,
Sameep sameep@tuxwire.com
Ideally, I would like a solution with least human interaction when PRI crashes and Backup PC has to be used.
Pls help me! Thx -- http://mm.glug-bom.org/mailman/listinfo/linuxers
On Friday 18 September 2009, RSCL Mumbai wrote:
Hi,
I am still without a solution for disc mirroring....
Let me explain the setup once again.
I have 2 identical PCs (same Motherboard, RAM, Processor). -- using FC9 1st one is a Primary server which is ON all the site. 2nd one is a Backup server which is only switched on when BACKUP is being taken. Rest of the time its switched off.
I need to create an identical copy of the HDD of Primary PC on Sec PC.
I tried Disc Image software -- "g4l". When I restore the image on the Sec PC's HDD, there is a MAC address. Is there any way to solve this problem ?
What are you trying to say or do? A disk mirror is an EXACT replica of the disk. Just as intended.
Apart from RSync, is there any way to mirror DISC of 1st PC on the 2nd PC? And in such a scenario, how to address MAC address conflict issue ?
Ideally, I would like a solution with least human interaction when PRI crashes and Backup PC has to be used.
You want High availabilty. Not disc mirroring backup. Innumerable solutions. Search google for HA.
Pls help me! Thx
Let me revise my question: When mirroring a disc and deploying on another PC, is there any easy way to manage MAC address conflict.
Thx
On Friday 18 September 2009, RSCL Mumbai wrote:
Let me revise my question: When mirroring a disc and deploying on another PC, is there any easy way to manage MAC address conflict.
mac addresses are unique. You will never have a conflict - unless you are building ethernet cards with same mac addresses.
When I restore a ghost image on another PC, MAC address defined in ifcfg-eth0 does not match with the MAC address of the new PC and hence eth0 does not start.
Thats the problem area.
Thx
On Sat, Sep 19, 2009 at 12:18 AM, jtd jtd@mtnl.net.in wrote:
On Friday 18 September 2009, RSCL Mumbai wrote:
Let me revise my question: When mirroring a disc and deploying on another PC, is there any easy way
to
manage MAC address conflict.
mac addresses are unique. You will never have a conflict - unless you are building ethernet cards with same mac addresses.
-- Rgds JTD -- http://mm.glug-bom.org/mailman/listinfo/linuxers
On 09/19/2009 10:41 AM, RSCL Mumbai wrote:
When I restore a ghost image on another PC, MAC address defined in ifcfg-eth0 does not match with the MAC address of the new PC and hence eth0 does not start.
Thats the problem area.
So, logically, there are two ways to do this, either exclude the MAC address before taking the ghost image or change/delete it after restoring. On fedora this is set in /etc/sysconfig/network-scripts/ifcfg-eth*
In any case, like jtd suggested, I too would recommend looking up High availability for linux.
Thx
On Sat, Sep 19, 2009 at 12:18 AM, jtdjtd@mtnl.net.in wrote:
On Friday 18 September 2009, RSCL Mumbai wrote:
Let me revise my question: When mirroring a disc and deploying on another PC, is there any easy way
to
manage MAC address conflict.
mac addresses are unique. You will never have a conflict - unless you are building ethernet cards with same mac addresses.
-- Rgds JTD -- http://mm.glug-bom.org/mailman/listinfo/linuxers
RSCL Mumbai wrote:
When I restore a ghost image on another PC, MAC address defined in ifcfg-eth0 does not match with the MAC address of the new PC and hence eth0 does not start.
Thats the problem area.
Why do you have mac address in ifcfg-eth0? You don't need it.
On Saturday 19 September 2009, Rony wrote:
RSCL Mumbai wrote:
When I restore a ghost image on another PC, MAC address defined in ifcfg-eth0 does not match with the MAC address of the new PC and hence eth0 does not start.
Thats the problem area.
Why do you have mac address in ifcfg-eth0? You don't need it.
Is the real situation an ill defined problem and half baked solution?. I think so. Double guessing what the op wants due to paucity of info is a wild shot at best.
Why dont you describe whatever it is you are actually trying to achieve?
Are you trying to automate a failover mechanism of a critical resource, like a mail /proxy server, or merely trying to backup a hard disk. Either way cloning a disk is a daft method. Cloning is used primarily for installing junk oses on multiple machines. Or occasionally a one shot quick n dirty method for creating disk dumps.
jtd wrote:
On Saturday 19 September 2009, Rony wrote:
RSCL Mumbai wrote:
When I restore a ghost image on another PC, MAC address defined in ifcfg-eth0 does not match with the MAC address of the new PC and hence eth0 does not start.
Thats the problem area.
Why do you have mac address in ifcfg-eth0? You don't need it.
Is the real situation an ill defined problem and half baked solution?. I think so. Double guessing what the op wants due to paucity of info is a wild shot at best.
During my RedHat course we used this file regularly to edit the eth0 config and we never entered a mac id.
On Sat, Sep 19, 2009 at 8:21 PM, Rony gnulinuxist@gmail.com wrote:
RSCL Mumbai wrote:
When I restore a ghost image on another PC, MAC address defined in ifcfg-eth0 does not match with the MAC address of the new PC and hence
eth0
does not start.
Thats the problem area.
Why do you have mac address in ifcfg-eth0? You don't need it.
In FC9, HWADDR is there by default. I did not add it for any fancy reasons.
check this link: http://linux.derkeiler.com/Newsgroups/comp.os.linux.misc/2007-02/msg01219.ht...
RSCL Mumbai wrote:
On Sat, Sep 19, 2009 at 8:21 PM, Rony gnulinuxist@gmail.com wrote:
RSCL Mumbai wrote:
When I restore a ghost image on another PC, MAC address defined in ifcfg-eth0 does not match with the MAC address of the new PC and hence
eth0
does not start.
Thats the problem area.
Why do you have mac address in ifcfg-eth0? You don't need it.
In FC9, HWADDR is there by default. I did not add it for any fancy reasons.
check this link: http://linux.derkeiler.com/Newsgroups/comp.os.linux.misc/2007-02/msg01219.ht...
Comment the line and see if your card still works.
-
jtd -
Rony -
RSCL Mumbai -
Sameep -
steve