Mapping Between Smart Disk Enclosure Locations and Expansion Ports (OceanStor 18000 V5 Series)
Figure C-6 shows the layout of disk enclosures in a bay and the expansion port IDs for connecting smart disk enclosures.
The green, orange, yellow, and pink areas indicate the level-1, level-2, level-3, and level-4 disk enclosures respectively (that is, first, second, third, and fourth disk enclosures in a loop).
The port ID is in the format of CTEX:HX/LX:PX. CTEX indicates the controller enclosure ID, HX/LX indicates the slot ID of the expansion module, and PX indicates the port ID on the expansion module.
For example, DAE000 indicates the level-1 disk enclosure connecting to port P0 in slot 6 of controller enclosure 0, and DAE001 indicates the level-2 disk enclosure connecting to port P0 in slot 6 of controller enclosure 0.
- All disk enclosures in each fully populated bay are divided into eight loops. The loops are numbered 0, 1, 2, 3, 4, 5, 6, and 7 from bottom to top.
- The lower half of a bay is from 1 U to 16 U housing loop 0 to loop 3.
- The upper half of a bay is from 17 U to 42 U housing loop 4 to loop 7.
- Each smart disk enclosure occupies 4 U space. For example, disk enclosure DAE000 is installed in position 3 U to 4 U, but position 1 U to 2 U must be idle.
Connecting Smart Disk Enclosures
- If the number of smart disk enclosures is a multiple of 8, the layout of system bay 0 and disk bays is shown in Figure C-6.
- If the number of smart disk enclosures is not a multiple of 8
- Each loop contains up to two disk enclosures.
Disk bays and system bays have the same disk enclosure layout principles. The following uses system bay 0 as an example.
Allocate disk enclosures to loops 0 to 7 in the sequence of DAE000 > DAE010 > DAE020 > DAE030 > DAE001 > DAE011 > DAE021 > DAE031.
- Each loop contains up to four disk enclosures.
Install level 1 and level 2 disk enclosures in the same bay, and level-3 and level 4 disk enclosures in the same bay. Disk bays and system bays have the same disk enclosure layout principles. The following uses system bay 0 and disk bay 0_5 as an example.
- Allocate level-1 and level-2 disk enclosures to loops 0 to 7 in system bay 0 in the sequence of DAE000 > DAE010 > DAE020 > DAE030 > DAE001 > DAE011 > DAE021 > DAE031.
- Allocate level-3 and level-4 disk enclosures to loops 0 to 7 in disk bay 0_5 in the sequence of DAE002 > DAE012 > DAE022 > DAE032 > DAE003 > DAE013 > DAE023 > DAE033.
- Each loop contains up to two disk enclosures.
