B
Troubleshooting
Problems and Solutions
Problem | Error Message ID: 51 in event viewer when attempting to install |
| multiple host access (for clustering) to the same EMC CLARiiON |
| array storage group. The text of the message is: |
| An Error was detected on device \Device\Harddisk<x>\DR<x> |
| during a paging operation |
Solution | Until host cluster software is installed, only a single host should |
| access a storage group at a time. Refer to the EMC Support Matrix for |
| supported host configurations. |
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Problem | EMC Primus case emc29097 — If using HBAs connected to both |
| CLARiiON SPs, without PowerPath installed, duplicate LUNs will be |
| visible in the Device Manager and Disk Manager. Only one instance |
| of the LUN will be accessible, and all other matching mappings will |
| be listed as Unknown, Unreadable and Unallocated. |
Solution | This is normal behavior when multiple paths are available, |
| PowerPath is not installed, and the initiator type is registered in |
| PowerPath mode (array default depending on core code revision). |
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Problem | EMC Primus case emc69307 — When using QLogic HBAs in a |
| Brocade fabric environment, after upgrading Brocade |
| switch firmware to 3.0.2m, the HBAs report repeated link errors, and |
| intermittently lose fabric connectivity. |
| PowerPath may report paths lost and then found in quick succession, |
| and repeated Windows 2000 event log error entries for Link |
| Down/Link Up events similar to the following: |
Event ID: 11
Source: ql2300
Description: The driver detected a controller error on \Device\Scsi\ql2300x.
Data (words): offset 34 = 80120000 [ErrorCode: Link down error]
Event ID: 11
Source: ql2300
Description: The driver detected a controller error on \Device\Scsi\ql2300x.
Data (words): offset 34 = 80110000 [ErrorCode: Link up]
EMC Fibre Channel with QLogic HBAs in Windows Hosts | |
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