NeXTSTEP Disktab Entry for IBM Ultrastar 4.3GB (DCAS-34330)
This is from Dan Hartley ([email protected]).
#------------------------------------------------------------------------
# IBM Ultrastar 2ES. DCAS-34330 (4.33 GB), 512-byte sectors
#
# Daniel E. Hartley, 26 February 1998
#
# /usr/etc/scsimodes tells us:
# Drive type: IBM DCAS-34330 !#
# 512 bytes per sector
# 171 sectors per track
# 6 tracks per cylinder
# 8205 cylinder per volume (including spare cylinders)
# 0 spare sectors per cylinder
# 0 alternate tracks per volume
# 8467199 usable sectors on volume
# so, we construct a disktab thusly:
#
# [Note that sum of partition sizes plus the SCSI front porch must
# be <= total usable sectors; e.g., (2*4194304)+78271+320=8467199]
#
# [The following allocates approximately 2 GB to each of the first and
# second partitions and the small residual 40 MB to the third partition.]
#
DCAS-34330-512|IBM Ultrastar 2ES DCAS-34330-512:\
:ty=fixed_rw_scsi:nc#8205:nt#6:ns#171:ss#512:rm#5400:\
:fp#320:bp#0:ng#0:gs#0:ga#0:ao#0:\
:os=sdmach:z0#64:z1#192:hn=localhost:ro=a:\
:pa#0:sa#4194304:ba#8192:fa#1024:ca#16:da#8192:ra#10:\
:oa=time:ia:ta=4.3BSD:\
:pb#4194304:sb#4194304:bb#8192:fb#1024:cb#16:db#8192:rb#10:\
:ob=time:ib:tb=4.3BSD:\
:pc#8388608:sc#78271:bc#8192:fc#1024:cc#16:dc#8192:rc#5:\
:oc=time:ic:tc=4.3BSD:
#------------------------------------------------------------------------
This is from Juergen Sell ([email protected]).
#
# [NOTE: The following allocates approximately 1 GB to the first and
# third partitions and 2 GB to the second partition.]
#
DCAS-34330|IBM DCAS-34330:\
:ty=fixed_rw_scsi:nc#8205:nt#6:ns#171:ss#512:rm#5400:\
:fp#320:bp#0:ng#0:gs#0:ga#0:ao#0:\
:os=sdmach:z0#64:z1#192:hn=localhost:ro=a:\
:pa#0:sa#2100000:ba#8192:fa#1024:ca#8:da#4096:ra#10:oa=time:\
:ia:ta=4.3BSD:\
:pb#2100000:sb#4194304:bb#8192:fb#1024:cb#8:db#4096:rb#10:ob=time:\
:ib:tb=4.3BSD:\
:pc#6294304:sc#2172500:bc#8192:fc#1024:cc#8:dc#2048:rc#10:oc=time:\
:ic:tc=4.3BSD:\