HP Ultrium tape drives Q1538-90925 - Manual (Page 15)

HP Ultrium drives technical reference manual, volume 5: UNIX configuration guide 15
HP restricted
3 HP alpha UNIX
HP alpha UNIX 5.x
1. Add the following entry to your /dev/ddr.dbase file:
SCSIDEV ICE
Type = tape
Name = “HP” “Ultrium”
#
PARAMET ERS:
Type SubClass = lto # Linear Tape Ope n
Bloc kSize = 262144
TagQ ueueDept h = 0
MaxT ransferS ize = 0xffffff # 16Mb - 1
Read yTimeSec onds = 120 # Second s
Sync Transfer s = enabled
Wide Transfer s = enabled
Inqu iryLengt h = 0x20
DENSITY :
Dens ityNumbe r = 0,1,2,3,4 ,5,6,7
OneF ileMarkO nClose = yes
Dens ityCode = 0x44
Bloc king = 0
Comp ressionC ode = 1
Buff ered = 1
Spee d = 0
MODESEL ECT:
Mode SelectNu mber = 0
Save Page = No
Page Format = scsi2
Bloc kDescrip tor = yes
Tran sferLeng th = 16
Hdr. Tape.Buf ferMode = 0x1
Hdr. MediumTy pe = 0
Data .UBYTE[0 ] = 0x3D # Ve ndor Uniq ue Page C ode 3D
Data .UBYTE[1 ] = 0x02
Data .UBYTE[2 ] = 0x01
Data .UBYTE[3 ] = 0x00
2. Rebuild the kernel by running /sbin/ddr_config, then reboot the system with the tape drive
attached. Device files for the Ultrium drive will be generated in /dev/tape and /dev/ntape
when you reboot.
3. The names of the device files can be interpreted as follows:
Devices in the /dev/ntape
directory are “no-rewind” devices. Those in /dev/tape will
perform rewind on close.