1. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 1 Hector DUQUE, Rolf RUMLER duque@in2p3.frduque@in2p3.fr, rumler@in2p3.frrumler@in2p3.fr HEPIX, Orsay, April 2001 The Fibre Channel Project at the CC_IN2P3

2. Hector DUQUE, Rolf RUMLER - April 2001 2 Contents ¥ The problems to be solved ¥ How Fibre Channel (FC) can help ¥ Objectives ¥ The tests ¥ Perspectives ¥ Conclusions

3. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 3 The problems to be solved...

4. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 4 The problems to be solved... Sharing SCSI is at least difficult: 1) Server/silo maintenance server silo SCSI 9840 SCSI silo LAN

5. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 5 The problems to be solved... Sharing SCSI is at least difficult: server silo SCSI 9840 SCSI silo server FC switch 1) Server/silo maintenance LAN

6. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 6 The problems to be solved... ¥ 2) Obligation to transfer data by (IP-) network ¥ 3) ADSM/TSM (3490E ESCON ---> 9840 FC) server silo SCSI 9840 SCSI silo data LAN

7. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 7 server silo SCSI DLT SCSI silo ESCON LAN 3490E Redwood server TACOS/ ADSM TACOS/ ADSM TACOS The problems to be solved...

8. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 8 server silo SCSI DLT SCSI silo server ESCON LAN 3490E 9840 Redwood server FC switch TACOS ADSM TACOS/ ADSM TACOS/ ADSM TACOS/ TSM TACOS/ TSM ¥ 4) Keep sharing tape devices (TACOS/TSM) The problems to be solved...

9. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 9 How Fibre Channel can help?

10. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 10 A raw storage device (disk, tape drive) appears as a locally attached device to any computer connected to the SAN How FibreChannel can help... Sys Admin, Curtis Preston

11. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 11 How FibreChannel can help... Why FC?... to share resources... to remove the performance barriers of LANs. non network protocols - increasing performance - switched circuits - real/virtual circuits - low latency connection service - time_synchronous applications - efficient transfers...

12. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 12 How FibreChannel can help... ¥ Important characteristics $ Sharing drives $ Designed for heterogeneous environments  Uses switches ( “ fabric ” ) $ Performance $ Long distance connections possible But: $ Recent standardization, so: interoperability issues

13. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 13 Objectives...

14. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 14 Objectives... ¥ Initially: $ Sharing the 9840 drives (beetwen XTAGE/TSM) • Transform drives 9840 SCSI to 9840 FC $ Migrate ADSM/TSM data to the 9840s $ Improve the application level ¥ Medium term: $ Suppression of tape servers for FC interfaced drives ¥ Long term: $ Attach disks and tapes to the same switches

15. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 15 The tests...

16. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 16 The tests... Configuration 20Go IBM F50 SUN U60 9840 0,8Go 3490E SCSI FC

17. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 17 The tests... Configuration 20Go IBM F50 SUN U60 9840 Switch FC 0,8Go 3490E SCSI

18. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 18 ¥ Verification of closure of data paths ¥ Stability on heavy load ¥ Adaptation of libTapeIO library ¥ Test of main applications (TSM, XTAGE/TACOS) The tests...

19. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 19 The tests... Up to 80 MB/sc 1 drive 34.7 MB/sec 2 drives 31.1 MB/secx 2 = 62.2 MB/sec 3 drives 26.5 MB/sec x 3 = 79.6 MB/sec 4 drives 19.8 MB/sec x 4 = 79.2 MB/sec Switch Server 

20. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 20 ¥ Perspectives...

21. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 21 LAN (GiGE) LAN (Fast Eth) Tape Srv Disk Srv Client Tape Srv xtageread RFIO

22. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 22 LAN (GiGE) LAN (Fast Eth) Tape Srv Disk Srv Client Tape Srv xtagewrite HPSS/AFS RFIO

23. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 23 SAN LAN Disk Srv Client xtageread

24. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 24 SAN LAN Disk Srv Client xtagewrite RFIO HPSS/AFS

25. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 25 Conclusions... ¥ FC technology has helped the IN2P3: $ Sharing drives $ Improving performance $ Integrating heterogeneous environments ¥ Results are as we had expected ¥ IN2P3 will continue using FC in the medium term (at least)

26. The Fibre Channel Project at the CC_IN2P3 Hector DUQUE, Rolf RUMLER - April 2001 26 Hector DUQUE, Rolf RUMLER duque@in2p3.frduque@in2p3.fr, rumler@in2p3.frrumler@in2p3.fr HEPIX, Orsay, April 2001