HSG80 Enterprise/Modular Storage RAID Array Fibre Channel Solution Software V8.7A for Windows Release Notes (AA-RH0QL-TE, July 2003)
SCSI-2 to SCSI-3 Migration
43Release Notes – HSG80 Enterprise/Modular Storage RAID Array Fibre Channel Solution
Software Version 8.7A for Windows
— In SCSI-3 mode, the CCL is enabled, resulting in 127 visible LUNs and one
CCL.
• 1.024 TB storageset size
• 96 host connections
• 84 physical devices
• 20 RAID 3/5 storagesets
• 30 RAID 3/5 and RAID 1 storagesets (see Note)
• 45 RAID 3/5, RAID 1, and RAID 0 storagesets (see Note)
NOTE: For the previous two storageset configurations, this is a combined maximum,
limited to no more than 20 RAID 3/5 storagesets.
• 8 partitions of a storageset or individual disk
• 6 physical devices per RAID 1 storageset (mirrorset)
• 14 physical devices per RAID 3/5 storageset (RAIDset)
• 24 physical devices per RAID 0 storageset (stripeset)
• 45 physical devices per RAID 0+1 storageset (striped mirrorset)
SCSI-2 to SCSI-3 Migration
In order to extend interoperability within the heterogeneous SAN, StorageWorks
highly recommends that customers begin migrating from SCSI-2 to SCSI-3 protocols.
Moving to SCSI-3 allows greater diversity in the operating systems and storage
products (including EVA) that comprise a SAN.
All migrations from SCSI-2 to SCSI-3 should be planned during scheduled downtime.
SCSI migrations require a controller restart and most likely a server restart. Data
contained on CCL units needs to be moved to new units once SCSI migration is
complete.
CAUTION: Before attempting a SCSI-2 to SCSI-3 migration, it is extremely important
that all data be backed up and that units be available for remapping CCL data. In
addition, ensure that all redundant storagesets are in normal (non-reduced) mode.