Finding available LUN ID

hmarko — Thu, 05 Jun 2025 05:34:39 GMT

Hi.

My customer uses one VMFS datastore lun within a volume and the naming convention logic includes the LUN ID used to map the lun to the ESX cluster:

ex:

/vol/PRD_Datastore_23/prd_datastore_23/prd_datastore_23.lun will be mapped to all igroups starting with (EsxpX) usign LUN ID 23.

I created the following select statement to provide a list of all available LUN id from 0-254 that the operator can chose from, just need your help to see if there is more elegant way to achieve it.

select

num

from

(

select

0 as num

union

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1 as num

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2 as num

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3 as num

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4 as num

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5 as num

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6 as num

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7 as num

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8 as num

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9 as num

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10 as num

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11 as num

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12 as num

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15 as num

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20 as num

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21 as num

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22 as num

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23 as num

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24 as num

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25 as num

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26 as num

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27 as num

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31 as num

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112 as num

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113 as num

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114 as num

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115 as num

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118 as num

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119 as num

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120 as num

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122 as num

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123 as num

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124 as num

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125 as num

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126 as num

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166 as num

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171 as num

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172 as num

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223 as num

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224 as num

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225 as num

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226 as num

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228 as num

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230 as num

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231 as num

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233 as num

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235 as num

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238 as num

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245 as num

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246 as num

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247 as num

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248 as num

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249 as num

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select

250 as num

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select

251 as num

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select

252 as num

union

select

253 as num

union

select

254 as num

) ids

where

ids.num not in (

select

lunmap.lun_map_value

from

cm_storage.lunmap,

cm_storage.igroup

where

igroup.id=lunmap.igroup_id

and igroup.name REGEXP '${ESXCluster}[0-9]+'

)

topic Re: Finding available LUN ID in Active IQ Unified Manager Discussions

Finding available LUN ID

Re: Finding available LUN ID

Re: Finding available LUN ID