Re: G4s and error 519 - AN UPDATE
Here's an oddity. I used to get a lot of 519 errors when I had DAT tape changers, but since switching to DLT I hardly have any problems and the problems I do have are directly related to the end users machine. I ran DLT on a mixed 10BaseT with Hubs and switches for about 6 months before I moved to a new building and have 10/100 switched (Cisco 5500's) network. All of the machines I back up now are 100BaseT full Duplex. The Mac I was doing the backups on is a 9600/G4-450. The machine I am currently doing the backups on is a 7600/G3-250. I built a cable to connect the external DLT drive to the internal SCSI bus. because the internal bus is SCSI-2 Fast (10MB/sec) while the external connector is only SCSI-2 (5MB/Sec). The speed difference between the two machines only dropped 2-3MB/min on average (averaging about 100MB/min). The 7600 is a good combination. Low volume Filemaker Server during the day, Retrospect backups at night. One of the previous messages indicated the problem occuring on a 10T network, otherwise I'd suspect the (presumably OT) problem might be getting exposed by the higher throughput now that the G3 backup machine is on 100T, as the G4 has always been. Can anyone else confirm seeing the problem on a 10T only network? Absolutley - we see it on a 10T unswitched network that can be as slow as...insert your favourite cliche here... that said it does seem to fail more often when there is less overall network traffic (ie the middle of the night) and the throughput is higher. No 519s using AppleTalk (and I have checked and all the G4s have different node numbers so that is not the problem in our case) Our backup machine is 7300/180 with an AdvanSys UltraWide SCSI card to a Sony DDS-4 drive. Adrian Smith -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
Re: G4s and error 519 - AN UPDATE
We are having problems backing up G4s over the network. Basically, they get part way through the backup and then Retrospect looses the connection. The problem seems to be at the G4 end as once this has happened they have lost network connectivity until the next restart (sleep and waking seems to restore it as well). Back in November I started a thread on problems we were having getting G4s to backup over our 10Mb Ethernet network... Just to update everyone, we have found that switching the clients to AppleTalk rather than TCP/IP has eliminated all the errors we were experiencing (As suggested by Brooks Peters in the thread "G4 Client's OT Wiped Out by Backup via TCP/IP"). The backup is not as quite as fast (say 40 MB/min vs 50) but it does work. A timely thread! I just today moved our DAT drive (HP SureStore DDS-3 external) from one machine to another, and copied all the Retrospect stuff to make it the new machine. I've immediately got this 519 error backing up my own G4. The old Retro backup machine was a beige G3-266 desktop, motherboard 10T Ethernet, running 9.0.4. The new machine is a beige G3-300 desktop, Asante 10/100 card, 9.0.4, and using a Miles Bluenote SCSI card instead of the motherboard SCSI port. My G4 machine is a 400Mhz "Yosemite" (AGP graphics) version. I haven't been having problems with it until the move. One of the previous messages indicated the problem occuring on a 10T network, otherwise I'd suspect the (presumably OT) problem might be getting exposed by the higher throughput now that the G3 backup machine is on 100T, as the G4 has always been. Can anyone else confirm seeing the problem on a 10T only network? Our other two G4 machines are the older 400Mhz "Yikes" motherboards (PCI Graphics) from the original introduction, and so far I haven't seen 519 errors from them. We just got two new 533Mhz G4s, with 9.1, and I'll see if they have a problem, or if 9.1 makes the problem go away on the AGP G4, and post the results here. -- David Oberst/NWT Bureau of Statistics/Yellowknife, NWT, Canada [EMAIL PROTECTED][Explore Canada's Arctic] -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
Re: G4s and error 519 - AN UPDATE
Back in November I started a thread on problems we were having getting G4s to backup over our 10Mb Ethernet network... Just to update everyone, we have found that switching the clients to AppleTalk rather than TCP/IP has eliminated all the errors we were experiencing (As suggested by Brooks Peters in the thread "G4 Client's OT Wiped Out by Backup via TCP/IP"). The backup is not as quite as fast (say 40 MB/min vs 50) but it does work. Now if we could just nail the problem we are still having with the tape drive and 102 errors we would be all set... Adrian PS We have not tried any of the G4s with TCP/IP and OS9.1 yet. I would be interesting to know if 9.1 fixed the problems but as it ain't broke... At 4:19 PM +1100 22/11/00, Adrian Smith wrote: Hi all, We are having problems backing up G4s over the network. Basically, they get part way through the backup and then Retrospect looses the connection. The problem seems to be at the G4 end as once this has happened they have lost network connectivity until the next restart (sleep and waking seems to restore it as well). This seems to be the problem that was addressed by the "Ethernet Update 1.0" and our network does seem to come close to the type of network described in the Apple TIL on the subject. HOWEVER, installing the Ethernet Update doesn't fix the problem, although it may have made it a little better (the backup SEEMS to get a bit further). So, does anyone know how complete a fix the Ethernet Update was? Are there reports of G4s still having network problems? Does anyone have any suggestions for a workaround? Any other suggestions as to the cause? We have had zero problems backing up an iMac, a beigeG3 and an LCIII but the three G4s (and my Powerbook (firewire) which we just tested) seem to fail almost every time... Thanks Adrian -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
