Thanks you for your recommended. I am very sure the TOC is backed up to disk pool. But I wolud like to know the algorithm which TSM use to restore file from image backup. The restore file selection is quickly because it can read from TOC in the diskpool but after selected, how TSM scan the actually data in the image backup. Do TSM need to scan a whole image first before restore selected data. If so that means if I have the backup volume about 1 TB and I need to restore some files which may be 100 MB. TSM need to scan data about 1 TB before restore 100 MB,right? Any idea please suggest.
Best Regards, Wira Chinwong Engineering Department Manager SCSi Co., Ltd. 719 KPN Tower Bldg., 11th Floor, Rama 9 Rd., Huaykwang, Bangkapi, Bangkok 10310 Tel 02-7171066-7 Fax 0-27171068 Mobile: 086-3204115 E-mail: [EMAIL PROTECTED] -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Shawn Drew Sent: Thursday, July 03, 2008 8:46 PM To: [email protected] Subject: Re: [ADSM-L] TSM for NAS (NDMP) restoration algorithm Are you sure the TOC was backed up for the particular image you are trying to restore from? (Are you able to browse the contents of the directory with the web client) Also, when you run the backup node command, are you specifying "toc=yes"? or the default "toc=preferred" I had this problem when we were using "toc=preferred" Our TOC stgpool ran out of space, and we didn't have a monitor for this. The NAS backups continued to run successfully, but we didn't know that the TOC's weren't being created. I switched everything to TOC=Y Regards, Shawn ________________________________________________ Shawn Drew Internet [EMAIL PROTECTED] Sent by: [email protected] 07/03/2008 08:12 AM Please respond to [email protected] To ADSM-L cc Subject [ADSM-L] TSM for NAS (NDMP) restoration algorithm TSM Expert, I'm facing the NAS image restore performance issue. I have backup NAS volume about 1 TB by using NDMP direct to LTO4 and collect the TOC on disk pool. The backup is fine. But when I have to restore some files. The restoration take too long time (more than 24 hours). Any idea please suggest. I would like to know what is the methods that TSM use when restore some file from image without restore the whole image first. Thanks in advance. Best Regards, Wira Chinwong Engineering Department Manager SCSi Co., Ltd. 719 KPN Tower Bldg., 11th Floor, Rama 9 Rd., Huaykwang, Bangkapi, Bangkok 10310 Tel 02-7171066-7 Fax 0-27171068 Mobile: 086-3204115 E-mail: [EMAIL PROTECTED] This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. Please note that certain functions and services for BNP Paribas may be performed by BNP Paribas RCC, Inc.
