On 04/10/2011, at 1:31 PM, Ronda Brown wrote: > Hi Brian, > > Have you tried: Unplug the Power for 5min to your computer and > drives and then restart? > > The other thing that can happen is an external drive won't mount on > one computer but will mount on another. > If you have an application running from an external drive that > automatically loads on start up. > If the drive was not ejected properly(power failure etc) you can > find it won’t mount on the original computer but will mount on a > different Mac. > > Try disabling the auto start of all applications. > > Cheers, > Ronni
Hi Ronni, Thank you for your reply. I tried removing a combination FW400 / USB hub that I had my keyboard plus mouse, printer, USB drive and a FW400 drive (not turned on for quite a while) going through and once the hub was removed the FW800 drives came back into use. A FW400 port in the hub seems to be faulty. The relief of finding that and getting my drives up and working again was like having a boil lanced. Cheers Brian Scott > > On 04/10/2011, at 12:51 PM, Brian Scott wrote: > >> 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 > > > -- 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>
