trying to make hard disk duplicate

shreedhar.bh · 03-24-2009, 07:38 AM

Hello All

I am using Ubuntu desktop that which containg 80 gb hard disk with the partition as for / is 15 gb and swap as 2 gb and /home as 62 gb
Now my question is that i want to make a clone for this hard disk and make it as a standby machine if anything happend to working state then i need to be replace with cloned one with the same setting without lose of data and as well as user information is that possible and if it is please help me out its very urgent

Thanking you in advance

Regards
Shreedhar. BH

kirukan · 03-24-2009, 07:46 AM

Do you want to keep system like active & passive? what i mean if one system down due to some reason other one will up and running automatically
Are you expecting something like this? if yes
check the drbd and linux high availability heartbeat

pixellany · 03-24-2009, 07:57 AM

Why is this urgent?
More to the point, what response are you expecting by stating that it is urgent? Some people here will simply ignore your posts when you do this.

If you set up RAID mirroring, you'll have 2 drives with identical data, but anything that writes to one will also write to the other, so you will not be protected from SW glitches. (RAID--mirror will protect against a hardware failure of one drive)

You could write a simple cron job that would clone the active drive every night.

I think you'd be better off just having a good backup strategy. (To me, this means that you use a medium which is not installed in the computer and is turned off when not in use.)

schneidz · 03-24-2009, 12:41 PM

i would use a live cd, dvd, usb, ram, ... distirbution like knoppix or fc-9 and do:

Code:

dd if=/dev/sdX ibs=4096 | bzip2 > hd-iso.bz2 conv=noerror

this would probably take a while.

shreedhar.bh · 03-25-2009, 01:40 AM

Quote:

Originally Posted by kirukan

do you want to keep system like active & passive? What i mean if one system down due to some reason other one will up and running automatically
are you expecting something like this? If yes
check the drbd and linux high availability heartbeat

thnaks for responding

that is the good id for heartbeat if the both system are in same network and kept to be both side by side

but my question is that i have to take that system to other network with same configure and same user setup and that to be both network is working with the same configure with difrent static ip adress

regards
shreedhar.bh

shreedhar.bh · 03-25-2009, 01:49 AM

Quote:

Originally Posted by pixellany

why is this urgent?
More to the point, what response are you expecting by stating that it is urgent? Some people here will simply ignore your posts when you do this.

If you set up raid mirroring, you'll have 2 drives with identical data, but anything that writes to one will also write to the other, so you will not be protected from sw glitches. (raid--mirror will protect against a hardware failure of one drive)

you could write a simple cron job that would clone the active drive every night.

I think you'd be better off just having a good backup strategy. (to me, this means that you use a medium which is not installed in the computer and is turned off when not in use.)

thank you sir

as u said for the raid is very good idea but i have to move my system is to the other network place with the same configure and smae user configured with that system

for example now it is working on 192.168.0.1 and i want to make new network that 10.0.0.1 in differnt location with the same configeration

regards
shreedhar.bh

kirukan · 03-25-2009, 02:48 PM

The purpose of the high availability heart beat using for disaster recovery so if you say this is working only within same network then no point of having high availability heart beat(i just talk about the concept). Anyhow check about iSCSI whether this is suitable for your system.