NetApp Multipath最佳实践配置.doc

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1、.NetAppMultipath最佳实践配置1.RedHatEnterpriseLinux6withALUAenabledsampleconfigurationfileThefollowingfileprovidesanexampleofthevaluesyouneedtosupplywhenyourhostisrunningRedHatEnterpriseLinux6withALUAenabled:defaults{user_friendly_namesnomax_fdsmaxflush_on_last_delyesqueue_without_daemo

2、nno}blacklist{devnode"^hd[a-z]"devnode"^(ram

3、raw

4、loop

5、fd

6、md

7、dm-

8、sr

9、scd

10、st)[0-9]*"devnode"^cciss.*"}devices{device{vendor"NETAPP"product"LUN"path_grouping_policygroup_by_priofeatures"3queue_if_no_pathpg_init_retries50"prio"alua"path_checkerturfailbackimmediatepath_selector"round-ro

11、bin0"hardware_handler"1alua"rr_weightuniformrr_min_io128getuid_callout"/lib/udev/scsi_id-g-u-d/dev/%n"}}2.RedHatEnterpriseLinux6withoutALUAenabledsampleconfigurationfileThefollowingfileprovidesanexampleofthevaluesyouneedtosupplywhenyourhostisrunningRedHatEnterpriseLinux6anddoesnot

12、haveALUAenabled.Note:UnlessyouarerunningtheiSCSIprotocolandDataONTAPoperatingin..7-Mode,youshouldhaveALUAenabled.defaults{user_friendly_namesnomax_fdsmaxflush_on_last_delyesqueue_without_daemonno}blacklist{devnode"^hd[a-z]"devnode"^(ram

13、raw

14、loop

15、fd

16、md

17、dm-

18、sr

19、scd

20、st)[0-9]*"devnode"

21、^cciss.*"}devices{device{vendor"NETAPP"product"LUN"path_grouping_policygroup_by_priofeatures"3queue_if_no_pathpg_init_retries50"prio"ontap"path_checkerturfailbackimmediatepath_selector"round-robin0"hardware_handler"0"rr_weightuniformrr_min_io128getuid_callout"/lib/udev/scsi_id-g-u

22、-d/dev/%n"}}1.RedHatEnterpriseLinux6update1withALUAenabledsampleconfigurationfileThefollowingfileprovidesanexampleofthevaluesyouneedtosupplywhenyourhostisrunningRedHatEnterpriseLinux6update1withALUAenabled:defaults{user_friendly_namesnomax_fdsmaxflush_on_last_delyesqueue_without_d

23、aemonnodev_loss_tmo2147483647fast_io_fail_tmo5..}blacklist{devnode"^hd[a-z]"devnode"^(ram

24、raw

25、loop

26、fd

27、md

28、dm-

29、sr

30、scd

31、st)[0-9]*"devnode"^cciss.*"}devices{device{vendor"NETAPP"product"LUN"path_grouping_policygroup_by_priofeatures"3queue_if_no_pathpg_init_retries50"prio"alua"path_chec

32、kerturfailbackimmediatepath_selec