What do i change in zipl.conf, and what scsi config files do i need to change? -Cameron
-----Original Message----- From: Carsten Otte [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 26, 2004 01:34 To: Linux on 390 Port Cc: Seader, Cameron Subject: Re: Cloneing Linux Guests on FCP SCSI Yea, cloning a scsi volume is pretty easy. Those volumes are just plain block devices (n blocks with all the same size) like fba dasd, and you can copy all meta-information (partition table, boot record and such) by copying the entire volume: - configure both disks online in a running Linux system [that does _not_ reside on either of those disks] - verify that the disk size is equal: issue $bash> cat /proc/partitions the block count value for both disks must be equal the block count value for partitions may be different Example: [with ide, but is same for scsi except that devices are named "sd?" instead of "hd?"] major minor #blocks name 3 0 75051217 hda 3 1 10032088 hda1 3 2 506520 hda2 3 3 2003400 hda3 3 4 1 hda4 3 5 39070080 hda5 3 64 75051217 hdb 3 65 60032088 hdb1 3 66 1506520 hdb2 Above example looks fine, because hda and hdb do have the same #blocks counter [hda1 and hdb1 differ, but that does not matter] - issue a dd command to move the data: [example: clone source disk sdx to target disk sdy] $bash> dd if=/dev/sdx of=/dev/sdy bs=512 - reread the partition table from the target volume: $bash> blockdev --rereadpt /dev/sdy - sync disks $bash> sync --> done with kind regards Carsten Otte -- omnis enim res, quae dando non deficit, dum habetur et non datur, nondum habetur, quomodo habenda est "Seader, Cameron" <[EMAIL PROTECTED]> Sent by: Linux on 390 Port <[EMAIL PROTECTED]> 25/10/2004 04:51 PM Please respond to Linux on 390 Port To: [EMAIL PROTECTED] cc: Subject: Cloneing Linux Guests on FCP SCSI Greetings, We are migrating all systems to FCP SCSI, and before when we were under DASD we could do cloning really easy with ddr. Is there a way now to clone when you are under FCP SCSI? is there some doc out there that has a howto for this? I guess its pretty much the same except you have to use copy services, and then somehow you have to change the FCP map within the guest. Any ideas? -Cameron Seader This transmission may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. A1. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 [INFO] -- Access Manager: This transmission may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. A2 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
