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Storage Management and E-vaulting at UCLA AIS. Mainframe DASD Storage Grouping The UCLA – AIS DASD is grouped in three sets of volumes The first set.

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Presentation on theme: "Storage Management and E-vaulting at UCLA AIS. Mainframe DASD Storage Grouping The UCLA – AIS DASD is grouped in three sets of volumes The first set."— Presentation transcript:

1 Storage Management and E-vaulting at UCLA AIS

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3 Mainframe DASD Storage Grouping The UCLA – AIS DASD is grouped in three sets of volumes The first set of volumes is all the live data. This includes SYSTEM, Production, test, db2, tso, everything The second set of volumes are used for Disaster Recovery Backups The third set of volumes are used for the test LPAR.

4 Mainframe DASD Storage Grouping (continued) UCLA–AIS uses STK’s SNAPSHOT and INNOVATIONS’ FDR / FDR INSTANT to create the Disaster Recovery Backups and test LPAR. STK SNAPSHOT – Creates a point in time copy of data/volumes. This is called snapping data or a volume. In the first SNAPSHOT, all of the live data is snapped to a group of volumes. These volumes are used for the Disaster Recovery Backup process. In the second step, all of the volumes from the DR BACKUP are snapped to a third group of volumes. These volumes are used for the test LPAR system.

5 Current Daily DR Backups Source volumes are SNAPPED by two series of jobs First series snaps all DB2 subsystem and DB2 application volumes (142) in less than 60 seconds. Second series snaps all other volumes (570) in less than 9 mins. The snapped volumes are subsequently dumped to tape using FDRINSTANT All volumes are dumped by four FDR jobs using one tape drive each FDRINSTANT takes advantage of the HSDM feature of the SVA It takes the compressed data in the SVA and moves it directly to tape without decompressing. This process saves on time, tape and CPU resources. FDRINSTANT can take advantage of the ExHPDM feature in the EMC HDS and IBM boxes. HSDM /FDRINSTANT Modelwithwithout 32 mins05 mins 96 mins12 mins Twenty 20gb 9840 tapes are used daily for DR backups It takes 6 hours to dump all 712 devices to tape An average of 20 CPU minutes is consumed The tapes are sent to Iron Mountain for offsite storage

6 The source volumes are from the DR backup volumes Source volumes are SNAPPED in less than 10 mins One job is submitted to do the entire test LPAR complex Because the source volumes are only used for input to the backup process they are not changed. Therefore the test LPAR can be rebuilt (snapped) and IPLed as many times as needed throughout the day IPLing the test LPAR allows us to verify the quality of the backups Since AIS establishes its entire system, we can IPL and test what the system will look like at the hotsite The volumes are released and snapped again at the next Test LPAR creation Creating the Test LPAR

7 E-Vaulting or a similar process is one possible alternative for managing tape data and specifically for Disaster Recovery data tapes. Transmitting backed up files to another UC campus has been requested Testing has begun using FDR / FDRINSTANT as a main resource FDRINSTANT takes advantage of the HSDM feature of the SVA. It takes the compressed data in the SVA and writes it directly to tape or disk file without decompressing Tapes can be lost or damaged We have been looking for alternate processes Shipment of tapes to an offsite location has become a significant security issue.

8 The E-vaulting process 1. Copy original volumes using SNAPSHOT 2. Back up SNAPPED volumes with FDR / FDRINSTANT 3. FTP backup files to an offsite location 4. Restore backed up volumes to guest volumes

9 E-vaulting Preliminary Testing The previous mentioned process was tested at UCLA–AIS Two devices were selected for testing 1 work volume with miscellaneous data files 1 DB2 production application data files Both files were FTPed The FTP step was performed within the same complex but to a different LPAR No encryption was used

10 E-vaulting Preliminary Results Device type: Model 9allocated source volume6.97gb backup file using FDRINSTANT1.29gb FTP time12 mins. CPU time9.5 s. clock time19.78 mins. Verification: restored several files on the alternate LPAR.

11 Future Plans Meeting with our TCPIP goup to discuss issues or parameters that would enhance the transmission process. Test consecutive multiple FTP transmissions. This process can be considered for a DR scenario for those sites desiring to have a minimal to a complete complex. Encryption – FDRCRYPT can be considered to work in conjunction with the multiple makes of storage devices


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