Thin or Virtual Provisioning VMAX
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Virtual Provisioning (commonly known as thin provisioning) allows for storage to be allocated and accessed on demand from a pool of storage servicing one or many applications. The Virtual Provisioning feature involves these concepts: thin devices (TDEV), D ATA devices (DATADEV), and thin pools (THIN). 1. Create TDAT's (Data Devices) create dev count=5, size=100 GB, emulation=FBA, config=2-way-mir, attribu te=datadev, disk_group=4; create dev count=5, size=100 GB, emulation=FBA, config=RAID-5,data_membe r _count=3, attribute=da tadev,disk_group=4; Value for data_member_count Protection Type 3 RAID5 (3+1) 7 RAID5 (7+1) 6 RAID6 (6+2) 14 RAID6 (14+2) # symdev -sid xx list -datadev 2. Create ThinPool and Add TDATs to ThinPool <create_pool.txt> create pool Thin_FC_R1, type=thin, max_subs_percent=100; symconfigure -sid xx -f create_pool.txt preview -nop symconfigure -sid xx -f create_pool.txt commit -nop or symconfigure -sid xx -cmd "create pool Thin_FC_R1, type=thin, max_subs_p ercent=100;" commit -nop To add TDATs to ThinPool ------------------------ symconfigure -sid 34 -cm d "add d ev 10E4:10E5 to pool Thin_FC_R1 type=thin, mem ber_state=ENABLE;" preview -nop Create and Add at same time: --------------------------- symconfigure -sid xxx -cmd "create dev count=5, config=2-Way-Mir, attribute=dat adev, emulation=FBA, size=78450 Cyl, in pool Thin_FC_R1, member_state=ENABLE;" c ommit -nop
description
VMAX
Transcript of Thin or Virtual Provisioning VMAX
Virtual Provisioning (commonly known as thin provisioning) allows for storage to beallocated and accessed on demand from a pool of storage servicing one or manyapplications.The Virtual Provisioning feature involves these concepts: thin devices (TDEV), DATAdevices (DATADEV), and thin pools (THIN).1. Create TDAT's (Data Devices) create dev count=5, size=100 GB, emulation=FBA, config=2-way-mir, attribute=datadev, disk_group=4; create dev count=5, size=100 GB, emulation=FBA, config=RAID-5,data_member_count=3, attribute=datadev,disk_group=4; Value for data_member_count Protection Type3 RAID5 (3+1)7 RAID5 (7+1)6 RAID6 (6+2)14 RAID6 (14+2) # symdev -sid xx list -datadev2. Create ThinPool and Add TDATs to ThinPool create pool Thin_FC_R1, type=thin, max_subs_percent=100; symconfigure -sid xx -f create_pool.txt preview -nop symconfigure -sid xx -f create_pool.txt commit -nop or symconfigure -sid xx -cmd "create pool Thin_FC_R1, type=thin, max_subs_percent=100;" commit -nop To add TDATs to ThinPool ------------------------ symconfigure -sid 34 -cmd "add dev 10E4:10E5 to pool Thin_FC_R1 type=thin, member_state=ENABLE;" preview -nop Create and Add at same time: --------------------------- symconfigure -sid xxx -cmd "create dev count=5, config=2-Way-Mir, attribute=datadev, emulation=FBA, size=78450 Cyl, in pool Thin_FC_R1, member_state=ENABLE;" commit -nop 3. To List ThinPools ---------------- symcfg list -pools -thin -sid xxx symcfg show -pool Thin_FC_R1 -thin -detail -all -sid xxx symcfg list -pool -all -sid xxx4. Create TDEV's symconfigure -sid xxx -cmd "create dev count=8, size=23334 cyl, emulation=fba, config=TDEV;" commit -nop5. Bind TDEV's to ThinPool symconfigure -sid xxx -cmd "bind tdev 0AB1:0AC0 to pool Thin_FC_R1;" commit -nop To List All Tdev's ----------------- symdev list -sid xxx -tdev symcfg -sid xxx list -tdev -detail6. 5Adding additional data devices to a pool ----------------------------------------symconfigure -sid xxx -cmd "add dev 12B1:12C0 to pool Thin_FC_R1 type=thin;" commit -nopsymconfigure -sid xxx -cmd "enable dev 12B1:12C0 in pool Thin_FC_R1 type=thin;" commit -nop7. Start and Stop Pool Rebalancig: ----------------------------- symconfigure -sid xxx -cmd "start balancing on pool Thin_FC_R1;" preview -nop symcfg show -sid xxx -pool Thin_FC_R1 -thin symconfigure -sid xxx -cmd "Stopping pool rebalancing;" preview -nop symcfg show -sid xxx -pool Thin_FC_R1 -thinNote: The start balancing operation is only supported on an enabled thin pool.8. Disabling Data Devices in a Thin Pool ---------------------------------------- symconfigure -sid xxx -cmd "disable dev 10EB in pool Thin_FC_R1, type=thin;" commit -nop Note: Disabling a data device changes its state from Enabled to Draining or symconfigure -sid xxx -cmd "deactivate dev 12B1:12C0 in pool Thin_FC_R1 type=thin;" preview -nop The deactivate command disables the DATA device without starting a drain. This operation puts the DATA device in either of following two states:Deactivated If the DATA device has any used tracks. ** Devices in Deactivate state will not allocate new tracks on themDisabled If the DATA device has zero used tracks. Now Start Pool Rebalancing: --------------------------- symconfigure -sid xxx -cmd "start balancing on pool Thin_FC_R1;" preview -nop symcfg show -sid xxx -pool Thin_FC_R1 -thin symconfigure -sid xxx -cmd "Stopping pool rebalancing;" preview -nop symcfg show -sid xxx -pool Thin_FC_R1 -thin
