The Question is:
After fitting a new hard disk to replace a failed one (shadowed)I cannot
initialise the new disk. It claims to be offline and has oe error showing. How
do I get the disk online?
How do I low level format a disk?
SCSI disk is a seagate ST318406LW
Show configuration from the console correctly identifies the disk type and scsi
SYSMAN IO SHOW DEVICE looks okay with dk driver showing addresses for all the
The Answer is :
As has been remarked before, "SCSI is a collection of optionally
implemented -- or optionally misimplemented -- features", and the
other classic remark, "None of the S's in SCSI are Standard".
There is typically no requirement for what some platforms might call
a low-level format for SCSI disk devices accessed by OpenVMS.
The volume-level format -- the file structure -- is established with
the OpenVMS INITIALIZE command.
There is apparently a configuration-level or hardware-level SCSI
incompatibility here. That the console can identify the device
means that some simple operations have succeeded -- that the console
has identified the device does not imply that the device will operate,
nor that the device will operate under any particular I/O load.
Please contact your hardware support vendor or storage vendor for
assistance with the requisite integration and testing, and please
also see the OpenVMS FAQ for related discussions of third-party
hardware issues, requirements, testing, and support considerations.
The effort involved in qualification of peripheral devices is large,
and involves detecting, isolating and resolving obvious functional
incompatibilities and obvious errors within the host, controller
or drive interfaces, as well as more subtle considerations such
as ensuring that the particular device thermal-cooling and other
environmental requirements are met. Acquisition of a supported
device is often far cheaper than performing a local qualification,
and particularly when -- such as is the case here -- errors are
encountered. Additionally, if operational problems should arise,
then the supported configurations will typically see the necessary
The device support effort involved can range from trivially simple
to what is effectively cost-prohibitive, and the particular results
and which extreme might be involved are not entirely clear at the
onset of the testing and support effort. Put another way, there
is definite value in the supported device configurations.
Additionall, your OpenVMS version is outdated, and in need of an
upgrade. While the OpenVMS Wizard is entirely unfamiliar with the
rated capacity of this Seagate device, the Wizard will also call
your attention to the maximum disk capacity and storage-ECO-related
information in the OpenVMS FAQ. If you cannot upgrade from V7.1-2,
please make certain that you have all current ECO kits applied.
The OpenVMS Wizard is not in a position to provide device qualification
and device integration assistance at no cost -- having been involved
in this, this effort can involve weeks or months of technical effort;
far beyond what the OpenVMS Wizard can offer. Again, please contact
your hardware support or storage vendor for this assistance, or please
then expect to become of a subject matter expert for SCSI.
Related discussions include (450),(514), (995), (1014), (1205), (1369),
(1409), (1549), (1593), (1660), (1749), (1958), (1984), (2048), (2408),
(2462), (2754), (2904), (2956), (3690), (4050), (4467), (4484), (4528),
(4739), (5040), (5137), (5182), (5353), (5458), (5550), (5680), (6576),
(6685), (6742), (7446), (8679), (8729), and many other topics.