Hi, I've had these two WD drives (4 TB & 2 TB) hooked up (daisy-chained) to my iMac 24" for a while now.
First yesterday I couldn't access some second level directories now I get this warning from 'About This Mac/firewire' - "FireWire Bus: Warning: Unable to list FireWire devices." even when they are plugged in individually. That's on the iMac, on the MacMini both drives work fine. I get the same result when I start the iMac in Safe Mode. The iMac's OS is 10.5.8 - the MacMini's OS 10.6.8. Both the 2 TB and 4 TB have the File System: Journaled HFS+. Both are called My Book though the 4 TB has 3 partitions. (each drive's info is listed below) I've only hooked them up to the MacMini individually incase I loose access to them altogether. I had a similar problem with them about a month ago but a PRAM reset brought things right again, it doesn't help anymore. I took computer (not the drives) into NextByte where they ran some tests on it and hooked up a laptop to it via FW800 with no problems and declared the iMac to have no issues. Is there a way of getting my iMac to recognize these drives again? Thanks Brian Scott - Here are each drive's info.. The 2 TB... FireWire Bus: Maximum Speed: Up to 800 Mb/sec My Book: Manufacturer: WD Model: 0x1105 GUID: 0x90A99500A395B0 Maximum Speed: Up to 800 Mb/sec Connection Speed: Up to 800 Mb/sec Sub-units: My Book Unit: Unit Software Version: 0x10483 Unit Spec ID: 0x609E Firmware Revision: 0x1015 Product Revision Level: 1015 Sub-units: My Book SBP-LUN: Capacity: 2 TB (2,000,392,994,816 bytes) Removable Media: Yes BSD Name: disk2 Partition Map Type: APM (Apple Partition Map) S.M.A.R.T. status: Not Supported Volumes: Capacity: 32 KB (32,256 bytes) Writable: No BSD Name: disk2s1 My Book: Capacity: 2 TB (2,000,258,736,128 bytes) Available: 209 GB (209,002,385,408 bytes) Writable: Yes File System: Journaled HFS+ BSD Name: disk2s3 Mount Point: /Volumes/My Book My Book Device Unit: Unit Software Version: 0x10483 Unit Spec ID: 0x609E Firmware Revision: 0x1015 Product Revision Level: 1015 Sub-units: My Book Device SBP-LUN: The 4 TB... FireWire Bus: Maximum Speed: Up to 800 Mb/sec My Book: Manufacturer: WD Model: 0x1105 GUID: 0x90A99500B02281 Maximum Speed: Up to 800 Mb/sec Connection Speed: Up to 800 Mb/sec Sub-units: My Book Unit: Unit Software Version: 0x10483 Unit Spec ID: 0x609E Firmware Revision: 0x1017 Product Revision Level: 1017 Sub-units: My Book SBP-LUN: Capacity: 4 TB (4,000,781,090,816 bytes) Removable Media: Yes BSD Name: disk2 Partition Map Type: GPT (GUID Partition Table) S.M.A.R.T. status: Not Supported Volumes: Capacity: 209.7 MB (209,715,200 bytes) Writable: Yes BSD Name: disk2s1 2TB: Capacity: 2.25 TB (2,248,501,121,024 bytes) Available: 1.73 TB (1,734,896,709,632 bytes) Writable: Yes File System: Journaled HFS+ BSD Name: disk2s2 Mount Point: /Volumes/2TB SDBU924: Capacity: 992.44 GB (992,441,819,136 bytes) Available: 992.19 GB (992,189,603,840 bytes) Writable: Yes File System: Journaled HFS+ BSD Name: disk2s3 Mount Point: /Volumes/SDBU924 TM707: Capacity: 759.23 GB (759,225,741,312 bytes) Available: 481.74 GB (481,735,430,144 bytes) Writable: Yes File System: Journaled HFS+ BSD Name: disk2s4 Mount Point: /Volumes/TM707 My Book Device Unit: Unit Software Version: 0x10483 Unit Spec ID: 0x609E Firmware Revision: 0x1017 Product Revision Level: 1017 Sub-units: My Book Device SBP-LUN: -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>