IBM ds8000配置手册

目 录

目 录

1 文档版本 ......................... 错误！未定义书签。 2 DS8000逻辑配置 ................................... 3

2.1 关于虚拟化存储的几个重要概念 ................................ 3

2.2 安装DSCLI................................................... 8 2.3 激活DS8000 license......................................... 10 2.4 DS8000逻辑配置............................................. 11

2.4.1 列出arraysite ........................................................................................... 12 2.4.2 创建Array ............................................................................................... 12 2.4.3 创建RANK ............................................................................................. 15

2.4.4 创建Extend Pool ...................................................................................... 15 2.4.5 将rank加入到相应的extend pool ............................................................. 16 2.4.6 创建LUN ................................................................................................ 17 2.4.7 创建volume group ................................................................................... 19 2.4.8 将LUN加入到需要的volume group中..................................................... 22 2.4.9 创建host connection ................................................................................. 22 2.4.10 用脚本执行命令..................................................................................... 25 2.4.11 主机端安装SDD软件，识别vpath ......................................................... 26

1 DS8000逻辑配置

1.1 关于虚拟化存储的几个重要概念

Storage Hierarchy?Disk?Individual DDMsArray Sites?Pre-determined grouping of DDMsof same speed and capacity (8 DDMsfor DS8000; 4 DDMsfor DS6000)Arrays?One 8-DDM Array Site used to construct one RAID array (DS8000)?One or two 4-DDM Array Sites used to construct one RAID array (DS6000)Ranks?One Array forms one CKD or FB Rank (4 or 8 DDMs)?No fixed, pre-determined relation to LSSExtent Pools?1-N Ranks form an Extent Pool (N=1/2 total ranks)?All Extents in a Pool are same storage type (CKD/FB); same RAID recommended?Associated with Server0 or Server1 (DS8000)??RAID5 or RAID10?CKD or FB?Extent Extent PoolPool–Controller 1 or Controller 2 (DS6000)

Extent Pools??User-configured to be either CKD or FBContain one or more ranks divided into fixed-size extents???Extent Pool 3Rank1CKD –3390 Mod1FB –1GBRecommend one rank per pool as in example --unless large LUN size is required?Contain one or more LUNs/volumes made up of extents?2 volumes in the example (2310,7501) –xyzz(x=address group, xy=LSS, zz=volid)?Extent pool is assigned to Server0 or Server1 during configuration (‘server affinity’) ???23107501By user during custom configurationBy algorithm during auto or express configurationServer1 in the example–Indicated by odd-numbered LSSs

?Minimum of 2 pools to utilize subsystem ?Server0 and Server1?Maximum of n pools where n is the number of ranks in subsystem?8 pools/8 ranks in the example?Extent pool can contain one or more ranks?Recommend one rank per extent pool unless a volume size larger than one rank is required?One rank per pool means pool contains LUNs/volumes on one rank only?One rank per pool will not constrain addresses–Volumes on one rank in one pool can be in multiple LSSs–Volumes on different ranks in different pools can be in the same LSS (limited by odd/even server affinity)Ext. Pool 0Rank 0Ext. Pool 1Rank 1Ext. Pool 2Rank 2Ext. Pool 3Rank 3Ext. Pool 4Rank 4Ext. Pool 5Rank 5Ext. Pool 6Rank 6Ext. Pool 7Rank 7?Rank can be added to extent pool at any time?Rank can be removed from extent pool if no extents on rank are currently assigned to LUNs/volumes……LSSs/LCUs?Logical grouping of volumes?Determines addressing, address group, and PAVs–Max of 256 addresses in LSS–16 LSSsin an address group (00-0F, 10-1F, 20-2F, etc.)–A given PAV can only be used within one LCU?Also used for copy services PPRC paths and consistency group properties/timeouts?Maximum number of LSSs?DS8000 –128 at GA (max 16 ESCON CKD, max 64 FICON CKD, max 64 FB)?DS6000 –32 at GA (no ESCON, max 32 CKD if no FB, max 32 FB if no CKD, max 16CKD+16FB if mixed)?Pre-determined association with Server0 or Server1 ?Even LSSsassociated with Server0?Odd LSSsassociated with Server1?LSS configured to be either FB or CKD?CKD –during LCU creation?FB –during volume creation

?No pre-determined relation to physical ranks?No pre-determined relation to extent pools other than server affinity????One LSS can contain volumes from different poolsOne pool can contain volumes that are in different LSSsOne LCU can contain CKD volumes of different types (3390 M3s & M9s) Many-many relationshipExtent Pool 3Rank123107501Extent Pool 5Rank323137512

?LSS definition?CKD –during LCU creationFB –during volume creation?LSSsnumbers are pre-grouped in groups of 16 LSSsto make up address groups?LSSs00-0F --address group 0, LSSs10-1F --address group 1, etc.??Extent Pool 3Rank123107501LSS 23 in the example is in address group 2; LSS 75 in the example is in address group 7Entire address group (all 16 LSSs) will be either FB or CKDDS8000 --8 address groups at GADS6000 –2 address groups at GA???

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