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Tivoli Storage Manager at CERN. David Asbury CERN/IT/FIO HEPIX, Rome, 6 April 2006. Reasons for backup. Accidental corruption of files/mail/dbs Storage failure, disks, raid arrays(!) Need to get a server running again Fire, water, power, cooling problems Backup is very boring until ….!.

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tivoli storage manager at cern

Tivoli Storage Manager at CERN

David Asbury CERN/IT/FIO

HEPIX, Rome, 6 April 2006

reasons for backup
Reasons for backup
  • Accidental corruption of files/mail/dbs
  • Storage failure, disks, raid arrays(!)
  • Need to get a server running again
  • Fire, water, power, cooling problems
  • Backup is very boring until ….!

HEPIX Rome 2006: TSM at CERN

cern policy on data

AFS volume backup -> Castor

TSM

TSM

TSM

TSM

Castor

CERN Policy on Data
  • Home Directories
    • AFS
    • Windows DFS
  • Mail
    • Microsoft Exchange
  • Databases
  • Unix group & project servers
  • Experimental Data

Only Servers

HEPIX Rome 2006: TSM at CERN

why use tsm
Why use TSM?
  • Good experience over 15 years
    • Backup & Archive available
    • Collocation supported (so restores are faster)
    • Multiple copies in different locations
    • Very tuneable and scales to a large service
    • TDP available with RMAN for dbs (incremental)
    • Good monitoring software – Servergraph
    • Cost saving from using single product (stop Legato)

HEPIX Rome 2006: TSM at CERN

terminology

TSM server1

TSM server2

Terminology

TSM machine

RAID disks

DFS

Server

FC switch

Client nodes

Tape drives

Gbit

HEPIX Rome 2006: TSM at CERN

service revived in 2003
Service Revived in 2003
  • 2 x old IBM F50 machines
  • Added modern IBM p630 machine in 2003
  • FC switch to attach disks & tapes
  • Infortrend disk RAID arrays
  • Added IBM p5-550 machine (in another building), connected by FC

HEPIX Rome 2006: TSM at CERN

new machine hardware
New Machine hardware
  • IBM p5-550, AIX 5
    • 2 x cpus 1.6 GHz
    • 8GB memory
    • 2 fiber-channel HBAs (disk, tape)
    • 2 Gigabit interfaces
  • Brocade 3800 fiber-channel switch 16-port
  • 2 Infortrend SATA disk RAID trays
    • 5.5TB usable RAID5 staging space
  • 1 Infortrend FC disk tray (for TSM dbs)
  • 5 STK 9940B tape drives (200GB)

HEPIX Rome 2006: TSM at CERN

2 nd backup machine
2nd Backup machine

B613

B513

Gbitx2

Gbit x 2

IBM p630

tsm11,tsm12

IBM p5-550

tsm21,tsm22

tsm001

tsm002

FC-16 switch

FC-16 switch

HEPIX Rome 2006: TSM at CERN

growth
Growth!

HEPIX Rome 2006: TSM at CERN

monitoring software
Monitoring Software
  • Servergraph/TSM
    • Monitors all licensed TSM servers
    • Mature product, understands TSM well
    • Web interface - extendable
    • Email warnings
      • To users about failed backups
      • To admin about server and hardware problems
    • Capacity Planning

HEPIX Rome 2006: TSM at CERN

tsm on a linux machine
TSM on a Linux machine
  • Reduce capital costs
  • Easier to prevent scalability problems
  • Being tested in CERN
  • Recent version supports STK ACSLS

HEPIX Rome 2006: TSM at CERN

tdp for oracle
TDP for ORACLE
  • Tivoli Data Protection for Oracle
  • Allows incremental backups with RMAN
  • Important for future Physics meta-dbs
  • ~60 databases in CERN now

HEPIX Rome 2006: TSM at CERN

lanless backups
LANless Backups
  • Client to TSM tape via fiber-channel
  • Avoids TCP/IP overhead in client & server
  • Avoids bottlenecks in LAN
  • Needs available tape drives (as before)
  • Still need staging space for REDO logs
  • High rate of metadata from LHC

HEPIX Rome 2006: TSM at CERN

lanless backup
LANless Backup

TSM

ORACLE

Gbitx2

Gbit x 2

TSM

server

ORACLE

TSM client

DB

TSM Storage

Agent

FC-16 switch

FC-16 switch

HEPIX Rome 2006: TSM at CERN