I have installed the newer edge version 1.01.08 on SCO 5.06
and I am having alot of trouble getting 1.01.08 to read/restore
tapes made using 1.01.06 on SCO 5.05. (the tape will read/restore
on a machine using edge 1.01.06 on SCO 5.05)
Has anyone else found this problem ?
Peri
-
-
If anyone has, the folks at Microlite surely have, and in any
case, if you send them email describing your problem you'll find
they will be immediately helpful..
--
Tony Lawrence (to...@aplawrence.com)
SCO/Linux articles, help, book reviews, tests,
job listings and more : http://www.pcunix.com
Try using legacy mode...
Legacy mode is an option presented just before you go to backup or
restore.
> I have been using BackupEDGE version 1.01.06, which seems
> much more user friendly than newer version 1.01.08
>
> I have installed the newer edge version 1.01.08 on SCO 5.06
> and I am having alot of trouble getting 1.01.08 to read/restore
> tapes made using 1.01.06 on SCO 5.05. (the tape will read/restore
> on a machine using edge 1.01.06 on SCO 5.05)
>
> Has anyone else found this problem ?
>
> Peri
>
> -
> -
Turn off Software compression on 1.01.06 then you will be able to read
the tape on the newer version.
Glenn
--
*********************************
** Glenn Miller Jr. **
** Clinical Data Systems, Inc. **
** Phone: 423-629-0744 **
** Fax : 423-629-0755 **
*********************************
Have you discussed your issues with our support staff?
Email support is FREE, FOREVER to registered BackupEDGE users.
The /bin/edge binary that does the reading and writing is essentially
the same in 01.01.06, 01.01.07 and 01.01.08. Your compatibility problem
is related to other factors, which we'll examine below.
As a general rule, 01.01.08 is a lot smarter about dealing with hardware
devices than 01.01.06. Since it does more it is a little bit more
complicated. Here are some rules of thumb...
1a) BackupEDGE 01.01.06, by default, used the power up hardware block
size and compression defaults of a tape drive.
1b) BackupEDGE 01.01.08 can specifically set both of these items, although
it tries to be smart about using defaults.
1c) If you write at one hardware block size, you cannot read at a different
one, no matter which program you use. This includes tar, CPIO, you
name it.
1d) Different brands of tape drives have different power up default modes.
For instance, H-P DDS drives usually power up in variable block mode
(block size 0), while Seagate and Sony tape drives usually power up
with a hardware block size of 512. If you want to write on one, then
read on the other, one has to be changed via a software switch.
2) The same is SOMETIMES true of hardware compression, but usually only
with older tape drives where there were some models that support
hardware compression, and some that don't, but use the same media.
In these instances, compresion OFF is the least common denominator.
For improved compatibility:
a) After a hardware power up, issue the following command to the OLD system.
/usr/lib/edge/bin/edge.tape -g /dev/rStp0
Record the current block size setting.
b) After a hardware power up, issue the following command to the NEW system.
/usr/lib/edge/bin/edge.tape -g /dev/rStp0
Record the current block size setting.
c) If they are different, change the new system by setting the hardware
block size in the resource manager
(edgemenu -> Admin -> Define Resources)
to be the same as the old system.
A value of -1 means to use the power up value of the drive. BackupEDGE
will not fiddle with hardware block size if -1 is set.
d) If they are the same, check the compression with:
/usr/lib/edge/bin/edge.tape -a /dev/rStp0
If none of the above is helpful, try our support department at
sup...@microlite.com
Tom
---
D. Thomas Podnar - President t...@microlite.com Email
Microlite Corporation 724-375-6711 Voice
2315 Mill Street 724-375-6908 Fax
Aliquippa PA 15001-2228 888-257-3343 Toll Free Sales
+--------------------------------------------------------------------------+
| The Crash Recovery Company(sm) |
+--------------------------------------------------------------------------+
|Makers of Microlite BackupEDGE - Data Archiving Software For Unix/Linux. |
| and Microlite RecoverEDGE - The Smart Crash Recovery Software with |
| Network Support for Linux, UnixWare 7.1,|
| OpenServer 5.0.x and Unix 3.2v4.2. |
|http://www.microlite.com ftp://ftp.microlite.com |
+--------------------------------------------------------------------------+
The tape drives are the same brand, seagate, Travan NS20, I have turned
off Hardware compress and Software Compression on the 1.01.06.
The current block sizes read 512 for both tape drives.
Your support help told me to turn the SCSI interface off and set to OTHER,
but that also did not help.
D. Thomas Podnar wrote:
>
> Have you discussed your issues with our support staff?
>
> +--------------------------------------------------------------------------+
Thankyou for your help anyway, Glenn.
Glenn Miller Jr. wrote:
>
> Peri wrote:
> > I have installed the newer edge version 1.01.08 on SCO 5.06
> > and I am having alot of trouble getting 1.01.08 to read/restore
> > tapes made using 1.01.06 on SCO 5.05. (the tape will read/restore
> > on a machine using edge 1.01.06 on SCO 5.05)
>