HP XP20000XP24000 Disk Array - Manual (Page 89)

Preparing for Cross-OS File Exchange Operations 3-33
Hitachi USP V Cross-OS File Exchange User’s Guide
Allocating FXoto Intermediate Datasets
When you perform FXoto operations using OPEN-x FMT volumes, you must
allocate the intermediate datasets before starting the file transfer operations.
The FX Allocater (ALC) utility can only be used on OPEN-x volumes which have
already been formatted using the FX FMT utility.
Note: FCU version 01-01-41 or later is required for the ALC utility.
Note: For versions 01-01-41: The ALC utility for UNIX is a UNIX command
executed from the UNIX command line. The ALC utility for Windows
2000/2003/Windows NT systems is a GUI. The ALC utility for UNIX can only be
used on volumes formatted with the FMT utility for UNIX. The ALC utility for
Windows 2000/2003/Windows NT systems can only be used on volumes
formatted with the FMT utility for Windows 2000/2003/Windows NT systems.
CAUTION: The capacity of the intermediate dataset varies depending on block
length so remember to calculate the required size for the intermediate dataset.
When you transfer variable-length records, make sure to take the four-byte RL
information and four-byte BL information for each record into account.
UNIX - To allocate an FXoto intermediate dataset using the ALC utility:
1. Log in to the system as root.
2. Enter the following command at the UNIX command line prompt:
# allocds -d devname [-n datasetname] [-f recform] [-r reclen] [-b blocklen]
[-c cylinders]
Note: Enter only one value for each parameter. You can only allocate one
dataset at a time.
-d devname: Specify the raw device name of the OPEN-x volume on which
the dataset is being allocated. This parameter is required and must be
specified.
-n datasetname: Specify the name of the dataset being allocated
(maximum forty-four characters: A-Z, 0-9, @, #, ., \). Use uppercase
letters only, and do not use any spaces or symbols other than @, #, ., and
\. This parameter is required. If not specified, ALC will return the residual
capacity (free space) on the specified volume in number of cylinders.
-r recform: Specify the record format of the dataset being allocated: F
(fixed-length and de-blocking), FB (fixed and blocking), V (variable and
de-blocking), or VB (variable and blocking). This parameter is required. If
not specified, the default value of F is used.
-r reclen: Specify the record length (decimal) of the dataset being
allocated: 1 to 32760. This parameter is required. If not specified, the
default value of 4096 is used.