Overview: The Next Generation Mass Storage Stack (September 2009)
Table Of Contents
- Abstract
- Background
- Features of the Next Generation Mass Storage Stack
- Impact
- Background
- Impact
- Background
- Impact
- Background
- Impact
- Impact
- Introduction to the Agile View
- Changes to I/O and Mass Storage Subsystems
- Changes to Other Subsystems
- Migrating to the Agile View
- Conclusion
- Glossary
- Appendix A: Summary of Changes
- Appendix B: Using ioscan
- Appendix C: Using scsimgr
- Appendix D: Interpreting Lunpath Hardware Paths
- For more information
Figure 2: Agile View
# ioscan –N -fkn
Class I H/W Path Driver S/W State H/W Type Description
============================================================================
ext_bus 2 0/1/1/0 mpt CLAIMED INTERFACE SCSI Ultra320
tgtpath 4 0/1/1/0.0x0 estp CLAIMED TGT_PATH parallel_scsi target
lunpath 1 0/1/1/0.0x0.0x0 eslpt CLAIMED LUN_PATH LUN path for disk48
tgtpath 3 0/1/1/0.0x1 estp CLAIMED TGT_PATH parallel_scsi target
lunpath 0 0/1/1/0.0x1.0x0 eslpt CLAIMED LUN_PATH LUN path for disk47
fc 0 0/2/1/0 td CLAIMED INTERFACE Fibre Channel Adapter
tgtpath 6 0/2/1/0.0x500805f300083891 estp CLAIMED TGT_PATH fibre_channel target
lunpath 9 0/2/1/0.0x500805f300083891.0x4010000000000000
eslpt CLAIMED LUN_PATH LUN path for disk50
lunpath 6 0/2/1/0.0x500805f300083891.0x4011000000000000
eslpt CLAIMED LUN_PATH LUN path for disk49
fc 1 0/4/1/0 td CLAIMED INTERFACE Fibre Channel Adapter
tgtpath 8 0/4/1/0.0x500805f300083891 estp CLAIMED TGT_PATH fibre_channel target
lunpath 30 0/4/1/0.0x500805f300083891.0x4011000000000000
eslpt CLAIMED LUN_PATH LUN path for disk49
disk 47 64000/0xfa00/0x0 esdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/disk/disk47 /dev/rdisk/disk47
disk 48 64000/0xfa00/0x1 esdisk CLAIMED DEVICE HP 36.4GST336753LC
/dev/disk/disk48 /dev/rdisk/disk48
disk 49 64000/0xfa00/0x3 esdisk CLAIMED DEVICE HP MSA VOLUME
/dev/disk/disk49 /dev/rdisk/disk49
disk 50 64000/0xfa00/0x4 esdisk CLAIMED DEVICE HP MSA VOLUME
/dev/disk/disk50 /dev/rdisk/disk50
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