- Community Home
- >
- Storage
- >
- Data Protection and Retention
- >
- StoreEver Tape Storage
- >
- Re: How to slow down the SCSI bus speed on the rp7...
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-17-2003 09:34 AM
тАО06-17-2003 09:34 AM
How to slow down the SCSI bus speed on the rp7400
Hello Guys,
Anyone has idea if we can slow down the SCSI bus speed of the HP rp7400 system??
We got an old tape drive (HP88780) that dont work with "dd" command & the tape drive company recommends to slow down the bus speed to about 5 to 10Mbits..
any ideas are appreciated
Suheil
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-17-2003 09:48 AM
тАО06-17-2003 09:48 AM
Re: How to slow down the SCSI bus speed on the rp7400
The tape drive company have been smoking something they shouldn't.
The tape will only accept and receive data at its own speed and IT controls the speed of data.
Have you tried tar and cpio to the drive?
Paula
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-17-2003 10:43 AM
тАО06-17-2003 10:43 AM
Re: How to slow down the SCSI bus speed on the rp7400
to change SCSI port speed stop machine in PDC and use SCSI command in configuration menu. This drive is SE drive, and if there're other device on the bus they will be forced to work in SE mode. Where did you get this drive? Are you sure this drive has appropriate firmware for hpux server?
Eugeny
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-17-2003 10:50 AM
тАО06-17-2003 10:50 AM
Re: How to slow down the SCSI bus speed on the rp7400
The HP88780 Front Load Tape Drive was released in June 1989
Data transfer rate
to/from tape
769 Kbytes/s (GCR) max.
208 Kbyes/s (PE)max.
104 Kbytes/s (NRZI) max.
http://www.cpuinc.com/88780.html
Paula
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-17-2003 11:32 AM
тАО06-17-2003 11:32 AM
Re: How to slow down the SCSI bus speed on the rp7400
This Tape drive isa mess, i worked hard to make it work but it did'nt, it is seen by the HPUX 11i system as "HP88780" and i can write/read on it with tar only with the option "b .." , whenever i use dd , i write with no errors adn i read with i/o read error (error number 2). HP they don tsuppot this drive anymore and some guys say we should change the firmware to be seen by unix as "HP7980", but the company of the drive says that they do slow down the SCSI bus on some intel machines & this made it work that is why im wondering if we can slow the SCSI bus of the rp7400 system..
tragic story is not it :)...
Thank you for ur msg
Suheil
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-17-2003 10:49 PM
тАО06-17-2003 10:49 PM
Re: How to slow down the SCSI bus speed on the rp7400
HOw can we be sure if this drive has appropriate firmware for hpux server?
ioscan sees it as HP88780 and tar works on it with the "b" option, dd roughly work with "I/O error but not all the time..
i will investigate more to change the scsi bus speed on the rp7400.
Thanx
Suheil
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-19-2003 06:36 AM
тАО06-19-2003 06:36 AM
Re: How to slow down the SCSI bus speed on the rp7400
anyone is aware of a patch (or patches) to fix the "dd" command on hpux 11i ??
my dd on 11i is not reading on onay magnetic tape.
Thx
Suheil
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-19-2003 06:44 AM
тАО06-19-2003 06:44 AM
Re: How to slow down the SCSI bus speed on the rp7400
'map', find drive in the list, note number in first column and
'sel dev ##' ## is this number
'info'
'il'
this command will display information for the device. Take it out there and post here
Eugeny
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-20-2003 08:25 AM
тАО06-20-2003 08:25 AM
Re: How to slow down the SCSI bus speed on the rp7400
I will post the information as soon as i go to the customer site and get this data.
Regards
Suheil
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-22-2003 03:26 AM
тАО06-22-2003 03:26 AM
Re: How to slow down the SCSI bus speed on the rp7400
Just was at the site of tape drives, i tried to use the "cstm" to get info about the drives, it shows the device nb 7 as the "HP88780", but could not got more info coz when i run the tools within cstm it shows "disabled" ..for some reasons...
anyways i tried the mediainit command on the new tape & it comes with the error msg:
error in ioctl SET CMD MODE: mode sense: I/O error.
any ideas abotu this error will be appreciated. IF someone has the configuration parameters to be set on the HP88780 to work with HPUX 11 i woul dbe thankful.
Thx
Suheil