HP 411508-B21 - Smart Array E200/128 BBWC Controller RAID Скачать руководство пользователя страница 1 | Manualshive

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RAID 1(+0): breaking mirrors and rebuilding
drives

How to, 4th edition

Abstract.............................................................................................................................................. 2

Introduction......................................................................................................................................... 2

Splitting a mirrored array using the Array Configuration Utility.................................................................. 3

Recombining a split mirrored array using the Array Configuration Utility .................................................... 4

Breaking a mirror and rebuilding the array using the manual method ........................................................ 5

Reverting to a previous copy of a mirrored set using the manual method .................................................... 7

For more information............................................................................................................................ 9

Call to action ...................................................................................................................................... 9

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Содержание 411508-B21 - Smart Array E200/128 BBWC Controller RAID

Страница 1: ...rrored array using the Array Configuration Utility 3 Recombining a split mirrored array using the Array Configuration Utility 4 Breaking a mirror and rebuilding the array using the manual method 5 Reverting to a previous copy of a mirrored set using the manual method 7 For more information 9 Call to action 9 ...

Страница 2: ... store them for use as system backup The administrator can then replace the removed drives with new drives and allow the controller to automatically rebuild the new drives to restore fault tolerance Reverting to a previous backup is more complex and is explained later in this paper When increased capacity is required an administrator can replace half of the drives in a RAID 1 or RAID 1 0 array wit...

Страница 3: ...dentical new arrays consisting of RAID 0 logical drives This functionality is useful when replicating a configuration or building a backup before performing a risky operation Note that this is a bit different from the manual method in which the volumes remain in their original RAID 1 or RAID 1 0 configuration after being split Also note that using the ACU does not require splitting other arrays at...

Страница 4: ...f the arrays the operating system will be unable to distinguish between the two new arrays after the operating system has been restarted next step because the arrays will be identical 13 Restart the operating system Recombining a split mirrored array using the Array Configuration Utility To re mirror an array using ACU complete the following steps 1 Take the server offline 2 Insert the CD or boota...

Страница 5: ... the following procedure for configurations with only one array on the controller If multiple arrays are configured on a single controller all arrays and consequently all logical drives within each array must be broken and restored together Because of the added complexity this method of creating a quick backup of the logical drives is strongly discouraged in configurations with multiple arrays per...

Страница 6: ...by mistake simply reboot again and press F2 to fail the drives Figure 1 Boot up message indicating that the logical drive is still available but missing physical drives NOTE If the logical drive is failed at this point and the system will not boot most likely two drives that were mirrored to one another have been removed If this occurs shut down the system reinstall all drives and turn the system ...

Страница 7: ...at became part of the array during a rebuild process can OVERWRITE the BACKUP drive Be especially careful in using hot spares where the rebuild may have happened automatically and it is unclear whether another drive is now part of the array To simplify this process remove any spares before breaking the mirror and reinstall the spares only after the array is rebuilt To revert to a previous copy of ...

Страница 8: ...rt automatically run the Array Configuration Utility to initiate the rebuild CAUTION It is critical that the drives to be overwritten are hot inserted they must not be installed while the server is powered off NOTE The drive online LED will blink during the rebuild process When it stops blinking and turns solid green the rebuild is complete A 300 GB SAS 3 5 15K drive can take up to 2 hours to rebu...

Страница 9: ...w2 hp com bc docs support SupportManual c00 729544 c00729544 pdf Call to action Send comments about this paper to TechCom HP com 2009 Hewlett Packard Development Company L P The information contained herein is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein shou...

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