Denys said
"Another thing to consider is that since HP nicely crippled the A-class, the system would not be able to keep the DLT8000 streaming and that device HATES not streaming, so much so that it will enter shoeshine mode and perform abysmally. Just a parting gift from HP to the MPE community. (You should hear what they're doing to the VMS crowd.)"
The A400 has a 440mhz processor that is crippled to run about 58mhz (per MIPSTEST).
I uncrippled a customer and the backup went from 6 hours to 1 hour and 2 minutes.
-Craig
From: Denys Beauchemin <[log in to unmask]>
To: [log in to unmask]
Sent: Tuesday, November 24, 2015 6:51 AM
Subject: Re: SV: SV: DLT8000 on a A-Class HP3000
It's been a very long time...
FWSCSI is essentially HVD SCSI on SCSI-2 standard. This means that the signal is a differential in the voltage between various wires (HVD is High Voltage Differential) and Ultrawide SCSI is SE (Single Ended) SCSI, on the SCSI-2 standard which makes is wide (16 bits), like the FWSCSI.
So what is needed is a converter to power the signal from the UWSCSI interface on your server to the FWSCSI interface on the DLT device. I have a number of those somewhere here but they were for SE SCSI, not UltraSCSI. They might work for that since all they did was provide the powered signal and the cable is the one that converted from wide to narrow.
I would be happy to look for these converters (I think I know where they are,) but the problem is that you are in Denmark and I'm not anywhere close.
Another thing to consider is that since HP nicely crippled the A-class, the system would not be able to keep the DLT8000 streaming and that device HATES not streaming, so much so that it will enter shoeshine mode and perform abysmally. Just a parting gift from HP to the MPE community. (You should hear what they're doing to the VMS crowd.)
Denys
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of Torben Olsen
Sent: Tuesday, November 24, 2015 7:53 AM
To: [log in to unmask]
Subject: [HP3000-L] SV: SV: DLT8000 on a A-Class HP3000
Ok. Thanks.
I will have a little talk with the dealer who sold us the DLT8000 devices. ☺
Thanks for the help everyone.
I really appreciate it.
Mvh
Torben
Fra: Craig Lalley [mailto:[log in to unmask]]
Sendt: 24. november 2015 14:45
Til: Torben Olsen <[log in to unmask]>; [log in to unmask]
Emne: Re: SV: DLT8000 on a A-Class HP3000
Torbin,
You need either a DLT8000 with a Fast-Wide interface.
Or you need a cheap A4800A HVD (High Voltage Differential) SCSI card.
You can daisy chain devices to the card, but I would only use one tape at a time.
-Craig
________________________________
From: Torben Olsen <[log in to unmask]<mailto:[log in to unmask]>>
To: Craig Lalley <[log in to unmask]<mailto:[log in to unmask]>>; "[log in to unmask]<mailto:[log in to unmask]>" <[log in to unmask]<mailto:[log in to unmask]>>
Sent: Tuesday, November 24, 2015 5:42 AM
Subject: SV: DLT8000 on a A-Class HP3000
Hi Craig
Ok thanks. I feared that the device did not match the interface.
I am not a master on interfaces.
Given that I have Ultra Wide interface and a Ultra SE (narrow) SCSI what device would I then need for backup when DDS is not the option?
I don’t believe that I can put more interfaces in the server.
Venlige hilsner/Best regards
Torben Olsen
Konsulent
Datacon A/S
Direkte: 48 133 026
Mobil: 28 355 886
Email/SIP: [log in to unmask] <mailto:[log in to unmask]> Hejrevang 13 - 3450 Allerød
Telefon: 48 133 133 - www.datacon.dk<http://www.datacon.dk/>
[image001]<http://datacon.dk/om-datacon/publikationer/dc-magazine>
Fra: Craig Lalley [mailto:[log in to unmask]]
Sendt: 24. november 2015 14:27
Til: Torben Olsen <[log in to unmask]<mailto:[log in to unmask]>>; [log in to unmask]<mailto:[log in to unmask]>
Emne: Re: DLT8000 on a A-Class HP3000
Good Morning Troben, from the other side of the world.
You are trying to hook up a Fast Wide SCSI device to an Ultrawide interface.
The C6378A can only connect to a HVD Fast Wide SCSI interface (A4800A SCSI card comes to mind).
Remember!, The A-class does not support Dual-Head cards, so your only option is A4800A
-Craig
________________________________
From: Torben Olsen <[log in to unmask]<mailto:[log in to unmask]>>
To: [log in to unmask]<mailto:[log in to unmask]>
Sent: Tuesday, November 24, 2015 5:03 AM
Subject: DLT8000 on a A-Class HP3000
Hi folks
Our client is running a Series e3000/A400-100-15 running C.75.00.
Until now they have done the backup on DDS. Lately they had failure on the DDS drive and we have realized that it is getting difficult to get new tapes.
They have now decided to move to DLT8000 and have bought two of them - C6378A. One is supposed to go live on the system and the other to be stored as a spare device.
Also they have got two c2363b cables. They are rather long, but they should work.
As far as I can see in the "Communicator e3000 MPE/iX Release 7.5 (Software Release C75.00)" this should be ok.
I have connected one of the DLT's to the "Ultra Wide SCSI" interface with path 0/0/1/0.
When I run the ODE/Mapper2 the DLT is not recognized.
I have tried to change between the two DLT's and the two cables. It does not change anything.
I have tried to cheat it by adding the device in ioconfig by adding first the path 0/0/1/0.2 and then the device with this command: ad 8;path=0/0/1/0.2.0;ID=dlt;mode=autoreply
In that case I get the following error:
Configuration of the device in low-level I/O failed (IOCONFIG 1)
Any ideas?
Venlige hilsner/Best regards
Torben Olsen
Konsulent
Datacon A/S
Direkte: 48 133 026
Mobil: 28 355 886
Email/SIP: [log in to unmask]<mailto:[log in to unmask]> <mailto:[log in to unmask]<mailto:[log in to unmask]>%09>
Hejrevang 13 - 3450 Allerød
Telefon: 48 133 133 - www.datacon.dk<http://www.datacon.dk/>
[image001]<http://datacon.dk/om-datacon/publikationer/dc-magazine>
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