Re: השב: [ADSM-L] Backup and res tore question
Hello Erwann , Paul-Andre You are completely correct -mode=incremental works only on a restore of: restore image \\nasw\F$ F: -incremental –deletefiles NO on an -imagetofile ! Made a test today and works fine Very appreciate your support ... Best Regards Robert Ouzen Haifa University Israel -Original Message- From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Paul-Andre Chasse Sent: Wednesday, June 17, 2015 5:49 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] השב: [ADSM-L] Backup and res tore question Hi Erwann, I should have read the entire discussion before replying to you question. Erwann is right, the -imagetofile option can restore only a full image backup. A full image backup is a block by block copy of your disk partition. An incremental image backup is a file backup of the files that had changed since the last full image backup. When you ask to restore an image backup with the -incremental option, the TSM client starts by restoring the full image backup and after that it apply the changes needed by the subsequent incremental backups. When you ask to restore an image backup to a file, TSM cannot reconstruct a new image from an image from a full image backup and files from subsequent incremental backups. That would be too much complicated. Regards, Paul-André __ *Paul-André Chassé*, B. Sc. Analyste de l'informatique - Centre de calcul scientifique (John-S.-Bourque) Service des technologies de l'information Université de Sherbrooke Tél. : 819 821-8000, poste 62582 Courriel : paul-andre.cha...@usherbrooke.ca Le 2015-06-17 09:12, Robert Ouzen a écrit : Hi Erwann I am really lost.. As sent in my previus message , in the test I did.After an backup image (fulll) made a change on one file. And run a backup image F: -mode=incremental And so in the stat that only one file was backup ! So the option -mode=in remental is valid and respected the problem after it when run ing a restore backup image got the source file and not the changed file. Regards Robert נשלח מהטלפון הנייד של Samsung הודעה מקורית מאת: Erwann SIMON תאריך:06/17/2015 1:35 PM (GMT+02:00) אל: ADSM-L@VM.MARIST.EDU נושא: Re: [ADSM-L] Backup and restore question Hi Robert, I think that -incremental and –deletefiles are not available (or ignored) with -imagetofile. It makes sense since -incremental would lead to a file restore whereas -imagetofile leads to a bloc restore. You should note that –deletefiles is not availbale (or ignored) if your backup has been done like you do : backup image F: -mode=incremental -- Best regards / Cordialement / مع تحياتي Erwann SIMON - Mail original - De: Robert Ouzen rou...@univ.haifa.ac.il À: ADSM-L@VM.MARIST.EDU Envoyé: Mercredi 17 Juin 2015 11:57:18 Objet: Re: [ADSM-L] Backup and restore question Hello Ronald Make sense …. But still I made today a little test 1.Run a backup image F: (Full) (On it I have there a file test.txt with content: “First full backup Image”) 2. Edit this file test.txt and overwrite with “Incremental backup image” 3.: run a backup image F: -mode=incremental See below the output (seems good) tsm backup image f: -mode=incremental Total number of objects inspected: 16 Total number of objects backed up:1 Total number of objects updated: 0 Total number of objects rebound: 0 Total number of objects deleted: 0 Total number of objects expired: 0 Total number of objects failed: 0 Total number of objects encrypted:0 Total number of objects grew: 0 Total number of retries: 0 Total number of bytes inspected: 41.51 KB Total number of bytes transferred: 240 B Data transfer time:0.00 sec Network data transfer rate:0.00 KB/sec Aggregate data transfer rate: 0.03 KB/sec Objects compressed by:0% Total data reduction ratio: 99.44% Elapsed processing time: 00:00:07 4. did an: restore image F: E:\DiskF.iso –imagetofile -incremental –deletefiles 5.But on the file DiskF.iso I see on the test.txt file the content of: “First full backup Image” and not “Incremental backup image” I know I missed something but I can’t figure WHAT ??? Best Regards Robert From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Ron Delaware Sent: Wednesday, June 17, 2015 9:34 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Backup and restore question Robert, You cannot perform a normal incremental once you have performed a full image, unless you have two separate nodes, one doing image backups and one doing file by file backups. You can do incremental image backups but not an file by file
Re: השב: [ADSM-L] Backup and res tore question
Hi Erwann, I should have read the entire discussion before replying to you question. Erwann is right, the -imagetofile option can restore only a full image backup. A full image backup is a block by block copy of your disk partition. An incremental image backup is a file backup of the files that had changed since the last full image backup. When you ask to restore an image backup with the -incremental option, the TSM client starts by restoring the full image backup and after that it apply the changes needed by the subsequent incremental backups. When you ask to restore an image backup to a file, TSM cannot reconstruct a new image from an image from a full image backup and files from subsequent incremental backups. That would be too much complicated. Regards, Paul-André __ *Paul-André Chassé*, B. Sc. Analyste de l'informatique - Centre de calcul scientifique (John-S.-Bourque) Service des technologies de l'information Université de Sherbrooke Tél. : 819 821-8000, poste 62582 Courriel : paul-andre.cha...@usherbrooke.ca Le 2015-06-17 09:12, Robert Ouzen a écrit : Hi Erwann I am really lost.. As sent in my previus message , in the test I did.After an backup image (fulll) made a change on one file. And run a backup image F: -mode=incremental And so in the stat that only one file was backup ! So the option -mode=in remental is valid and respected the problem after it when run ing a restore backup image got the source file and not the changed file. Regards Robert נשלח מהטלפון הנייד של Samsung הודעה מקורית מאת: Erwann SIMON תאריך:06/17/2015 1:35 PM (GMT+02:00) אל: ADSM-L@VM.MARIST.EDU נושא: Re: [ADSM-L] Backup and restore question Hi Robert, I think that -incremental and –deletefiles are not available (or ignored) with -imagetofile. It makes sense since -incremental would lead to a file restore whereas -imagetofile leads to a bloc restore. You should note that –deletefiles is not availbale (or ignored) if your backup has been done like you do : backup image F: -mode=incremental -- Best regards / Cordialement / مع تحياتي Erwann SIMON - Mail original - De: Robert Ouzen rou...@univ.haifa.ac.il À: ADSM-L@VM.MARIST.EDU Envoyé: Mercredi 17 Juin 2015 11:57:18 Objet: Re: [ADSM-L] Backup and restore question Hello Ronald Make sense …. But still I made today a little test 1.Run a backup image F: (Full) (On it I have there a file test.txt with content: “First full backup Image”) 2. Edit this file test.txt and overwrite with “Incremental backup image” 3.: run a backup image F: -mode=incremental See below the output (seems good) tsm backup image f: -mode=incremental Total number of objects inspected: 16 Total number of objects backed up:1 Total number of objects updated: 0 Total number of objects rebound: 0 Total number of objects deleted: 0 Total number of objects expired: 0 Total number of objects failed: 0 Total number of objects encrypted:0 Total number of objects grew: 0 Total number of retries: 0 Total number of bytes inspected: 41.51 KB Total number of bytes transferred: 240 B Data transfer time:0.00 sec Network data transfer rate:0.00 KB/sec Aggregate data transfer rate: 0.03 KB/sec Objects compressed by:0% Total data reduction ratio: 99.44% Elapsed processing time: 00:00:07 4. did an: restore image F: E:\DiskF.iso –imagetofile -incremental –deletefiles 5.But on the file DiskF.iso I see on the test.txt file the content of: “First full backup Image” and not “Incremental backup image” I know I missed something but I can’t figure WHAT ??? Best Regards Robert From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Ron Delaware Sent: Wednesday, June 17, 2015 9:34 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Backup and restore question Robert, You cannot perform a normal incremental once you have performed a full image, unless you have two separate nodes, one doing image backups and one doing file by file backups. You can do incremental image backups but not an file by file incremental. Best Regards,
Re: השב: [ADSM-L] Backup and res tore question
Hi, When restoring an image backup with incrementals, you should use the 'incremental' option with your 'restore image' command. Paul-André __ *Paul-André Chassé*, B. Sc. Analyste de l'informatique - Centre de calcul scientifique (John-S.-Bourque) Service des technologies de l'information Université de Sherbrooke Tél. : 819 821-8000, poste 62582 Courriel : paul-andre.cha...@usherbrooke.ca Le 2015-06-17 09:12, Robert Ouzen a écrit : Hi Erwann I am really lost.. As sent in my previus message , in the test I did.After an backup image (fulll) made a change on one file. And run a backup image F: -mode=incremental And so in the stat that only one file was backup ! So the option -mode=in remental is valid and respected the problem after it when run ing a restore backup image got the source file and not the changed file. Regards Robert נשלח מהטלפון הנייד של Samsung הודעה מקורית מאת: Erwann SIMON תאריך:06/17/2015 1:35 PM (GMT+02:00) אל: ADSM-L@VM.MARIST.EDU נושא: Re: [ADSM-L] Backup and restore question Hi Robert, I think that -incremental and –deletefiles are not available (or ignored) with -imagetofile. It makes sense since -incremental would lead to a file restore whereas -imagetofile leads to a bloc restore. You should note that –deletefiles is not availbale (or ignored) if your backup has been done like you do : backup image F: -mode=incremental -- Best regards / Cordialement / مع تحياتي Erwann SIMON - Mail original - De: Robert Ouzen rou...@univ.haifa.ac.il À: ADSM-L@VM.MARIST.EDU Envoyé: Mercredi 17 Juin 2015 11:57:18 Objet: Re: [ADSM-L] Backup and restore question Hello Ronald Make sense …. But still I made today a little test 1.Run a backup image F: (Full) (On it I have there a file test.txt with content: “First full backup Image”) 2. Edit this file test.txt and overwrite with “Incremental backup image” 3.: run a backup image F: -mode=incremental See below the output (seems good) tsm backup image f: -mode=incremental Total number of objects inspected: 16 Total number of objects backed up:1 Total number of objects updated: 0 Total number of objects rebound: 0 Total number of objects deleted: 0 Total number of objects expired: 0 Total number of objects failed: 0 Total number of objects encrypted:0 Total number of objects grew: 0 Total number of retries: 0 Total number of bytes inspected: 41.51 KB Total number of bytes transferred: 240 B Data transfer time:0.00 sec Network data transfer rate:0.00 KB/sec Aggregate data transfer rate: 0.03 KB/sec Objects compressed by:0% Total data reduction ratio: 99.44% Elapsed processing time: 00:00:07 4. did an: restore image F: E:\DiskF.iso –imagetofile -incremental –deletefiles 5.But on the file DiskF.iso I see on the test.txt file the content of: “First full backup Image” and not “Incremental backup image” I know I missed something but I can’t figure WHAT ??? Best Regards Robert From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Ron Delaware Sent: Wednesday, June 17, 2015 9:34 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Backup and restore question Robert, You cannot perform a normal incremental once you have performed a full image, unless you have two separate nodes, one doing image backups and one doing file by file backups. You can do incremental image backups but not an file by file incremental. Best Regards,
