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Planning Applications and LUNs
4-9
Planning LUNs and File Systems with Unshared Direct Storage
A sample LUN worksheet follows.
Completing the LUN Planning Worksheet
As shown, draw circles around the disks that will compose each
LUN, and within each circle specify the RAID type (for example,
RAID 5) and LUN ID. This is information you will use to bind the
disks into LUNs. For disk IDs, use the form shown. This form is
enclosure_diskID, where enclosure is the enclosure number (the bottom
one is 0, above it 1, and so on) and diskID is the disk position (left is 0,
next is 1, and so on).
None of the disks 0_0 through 0_8 may be used as a hot spare.
Next, complete as many of the LUN sections as needed for each
storage system.Copy the (blank) worksheet as needed for all LUNs in
each storage system. A storage system is any group of enclosures
connected to a DPE; a full-fibre system can include up to nine DAE
enclosures for a total of 100 disks.
LUN Details Worksheet Use the following LUN details worksheet to plan the individual
LUNs. Complete as many of these as needed for all LUNs.
0_0 0_1 0_2 0_3 0_4 0_5 0_6 0_7 0_8 0_9
1_0 1_1 1_2 1_3 1_4 1_5 1_6 1_7 1_8 1_9
2_0 2_1 2_2 2_3 2_4 2_5 2_6 2_7 2_8 2_9
LUN number_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________
LUN number_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________
LUN number_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________
LUN number_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________
LUN number_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________
LUN number_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________
LUN number_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________
LUN number_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________
1
LUN 0
RAID 5
LUN 1
RAID 5
LUN 2
RAID 1
1
0
0_0, 0_1, 0_2, 0_3, 0_4
5
144
0_5, 0_6, 0_7, 0_8, 0_9
144
5
2
1_0, 1_1
36
1