scsimgr_estape.7 (2010 09)

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scsimgr_estape(7) scsimgr_estape(7)

NAME

scsimgr_estape - SCSI class driver estape plug-in for scsimgr

DESCRIPTION

The SCSI class driver

estape plug-in for scsimgr

implements management and diagnostic operations

speciﬁc to classes of devices bound to driver

estape. estape is the native HP-UX SCSI class driver

that handles, by default, all tape devices.

The plug-in handles the following operations for driver estape:

• Display and clear driver

estape global statistics and the statistics it maintains on instances of

LUNs bound to it, and on related LUN paths.

• Display status and other information maintained by driver

estape on LUNs bound to it.

• Get, set and save driver

estape

global and per-lun instance attributes.

Commands

The user can explicitly send the following scsimgr commands to driver

estape plug-in by specifying the

-d estape option:

clear_stat Clears statistics.

get_attr Displays information on attributes.

get_info Displays status and other information.

get_stat Displays statistics.

save_attr Saves value of attributes in a persistent store.

set_attr Set current values of attributes.

Note: Refer to scsimgr (1M) for syntax of the above commands.

However, the only instances where it is necessary to explicitly send a command to the plug-in is when

performing operations on objects global to driver

estape: global statistics, attributes or status informa-

tion. In all the other cases, scsimgr automatically invokes the plug-in to perform the driver speciﬁc

part of the operation, when the operation applies to LUNs bound to driver estape or to their LUN paths.

Attributes

The following table lists driver estape speciﬁc attributes. For details on the concept of attribute refer to

scsimgr (1M).

Note: The following conventions are used:

• RO is Read Only.

• RW is Read Write.

• VBM is Variable Block Mode.

• uint32 is unsigned 32 bits integer.

• uint64 is unsigned 64 bits integer.

• Range of values for applicable attributes is listed.

Object Attribute Name RO/RW Type Description

Version of driver estapeGlobal version RO string

norewind_

close_disabled

Disables the ability to open a "rewind"

device.

Default: 0

Values: 0 (disabled)

1 (enabled).

Note: This tunable was named

"st_san_safe" in releases prior to HP-UX

11i v3.

RW uint32

Determines whether to reserve the device

on open and release on close. See

st_ats_enable (5).

st_ats_enable RW uint32

HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1

Summary of content (4 pages)

PAGE 1
scsimgr_estape(7) scsimgr_estape(7) NAME scsimgr_estape - SCSI class driver estape plug-in for scsimgr DESCRIPTION The SCSI class driver estape plug-in for scsimgr implements management and diagnostic operations specific to classes of devices bound to driver estape. estape is the native HP-UX SCSI class driver that handles, by default, all tape devices.
PAGE 2
scsimgr_estape(7) LUN A sA 2 scsimgr_estape(7) Default: 0 Values: 0 (disabled) 1 (enabled). Note: This tunable was named "st_ats_enabled" in releases prior to HPUX 11i v3. Timeout for all commands not referenced below. Default: 60 default_secs RW uint32 space_secs RW uint32 Timeout for the space command. Default: 1200 write_secs RW uint32 Timeout for the write command. Default: 600 read_secs RW uint32 Timeout for the read command.
PAGE 3
scsimgr_estape(7) scsimgr_estape(7) tion 8 = Device supports Reserve/Release Tape Density to write. Default: 0x7f 0xFFFFFFFF = Best Density 0x00 = Let the device choose the density 0x7f = Do not modify tape density. other = a valid density code for the Mode Parameter Block Descriptor.
PAGE 4
(Notes) A (Notes) sA 4 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010