Updating the number of processors on Linux390
If the total number of processors or shared processors in your environment
changes, you need to update this information for all agents influenced by
this change. Otherwise, the system will display wrong information.
You also have to tell it what
We are working on a project to provide Internet access to select Linux guests
on z/VM. The network team plans to use separate OSA's and virtual switches for
this. For the initial testing, there will be one OSA and virtual switch for
the presentation zone and a separate OSA and virtual switch
* and two RDEV devices. Also you can use VLAN's to reduce the number
of Ports and isolate the traffic through a switch.
Larry Davis
From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On Behalf
Of O'Brien, Dennis L
Sent: Thursday, July 21, 2011 3:16 PM
To: IBMVM@LISTSERV.UARK.EDU
I think I saw one of our systems take 78 seconds to shut down recently, but
AFAIK, we don't have software to capture the shutdown messages. If I'm
thinking of the right system, it has over 5000 devices.
Jeff,
The class B requirement is there because the instructions tell you to
ATTACH the DASD to the installation guest. Obviously, if you put the
DASD in the directory, you don't need to issue an ATTACH command.
Dennis O'Brien
If man does find the solution for world peace it will be the
We used to have z/VM-only boxes here. The z/OS people maintained the
IOCP using HCD on z/OS. They exported the gens to the z/VM CEC's
through the HMC. I don't know the details on how they did it. I know
that they maintained our gen, and it did not involve them sending files
or logging on to
Wolfgang,
I use a different STATAREA color for most systems. We have more than 21
systems, and I don't like blinking, so there are a few duplicates. I don't see
the problem that you described. My status area color always stays what it
should be.
Perhaps your terminal emulator is at fault?
Velocity Software has an ESAFORCE component which can force idle users.
I imagine it could just list them, too.
Dennis
If you give a mouse a cookie, he's going to ask for a glass of milk.
From: The IBM z/VM Operating System
Sherry,
Instead of installing direct from an FTP server, you can put the files on a VM
minidisk and install from there. To do that, the minidisk must have at least
4500 cylinders.
Back when DVD installation was first introduced (z/VM 5.1.0, I think), we only
had 3390-3 disks on VM, so I tried
Sherry,
Note that what I was referring to in my previous note and what Alan describes
below are not the same thing. You can do what Alan described, using the VM FTP
server to serve the files. You can also install from a VM minidisk without
using any FTP server. You can get the files on the
Sherry,
The only way to get 4500 cylinders from a 3390-3 is to put two of them in an
SFS filepool. If you already have this set up, then the rest is relatively
easy. You can use the VM minidisk install method with minor changes. Upload
the files to SFS with your terminal emulator, then
If Moore's Law holds for another 20 years, we could all have Watson running on
our desktop PC's. Alex Trebek said Watson has something like 2800 processors
and 15 TB of RAM. I'm not sure if that was 2800 cores, or the equivalent of
2800 PC's (presumably dual or quad-core).
Martha,
Maybe minidisk cache is active on one of the systems. Did you define the DASD
as Shared?
Dennis
18 Jan 1911, one hundred years ago today, Eugene Ely makes the
Has the location for the August SHARE been announced? If it has, it's not on
the SHARE web site.
Dennis
Perhaps if Mayor Michael Bloomberg spent less
We have the master copy of our tools disk in SFS on one system. Each system
has a local copy on minidisk. A job on each system accesses the master and
applies updates to the local copy every night. If the SFS master isn't
available, no harm is done to the copies.
Mike,
We use PAV for volumes containing CMS minidisks. We turned it on a few months
ago on a system that we acquired with our last merger, and the user was quite
pleased. It took a couple of hours off of their nightly batch. PAV is also on
for volumes that contain SFS minidisks. It doesn't
Philip,
What's your paging rate with this configuration? 18 paging volumes seems low
for this amount of storage.
Dennis
Christmas dawned clear and cold;
A question came up today about the clock speed of the various System z models.
The context is some application software that's licensed by the speed of the
CPU. Apparently, there's a big price difference (measured in millions) if the
speed is over 1.5 GHz or so. I dug around on IBM's web
You would HAVE to buy an ESM, whether from IBM or CA.
Or have IBM include a basic awful one (eg, RACF) in the price of VM and be
done with it. Including a basic one that can be replaced with Something
Else would make everybody (IMHO) happy. The internal cost of including
RACF can't be that large.
I'm not a number. I'm a free man.
Dennis
In all matters of opinion, our adversaries are insane. -- Mark Twain
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Neale Ferguson
Sent: Wednesday, November 17, 2010 09:55
To: IBMVM@LISTSERV.UARK.EDU
Subject:
Richard,
We're using disk replication on HDS DASD for disaster recovery. We were
able to reduce a script that had about 30 steps to one that isn't much
more complicated than:
1. Suspend replication
2. IPL
3. Answer one question: is this a test or a real disaster?
4.
A filepool administrator can create aliases on behalf of any user. The syntax
is the same as the general user command. The major restriction on aliases is
that they can't cross filepools. If you move one user to a new pool, he can't
have aliases in the new pool pointing to base files in the
Can you confirm that extended support contracts are available for z/VM 5.4?
Our solution provider is aware of them for z/OS, but not for z/VM 5.4.
Brian Nielsen
Unfortunately, I can confirm that they are available for z/VM 5.2. I have no
reason to doubt that they will be available for 5.4
Mark,
You need a real CTC with both ends connected to the same system. You
ACTIVATE ISLINK for one end on the first-level system. You ATTACH or
DEDICATE the other end on first level to the virtual machine for the
second-level system. You then ACTIVATE ISLINK for that device on the
second-level
Gary,
It depends on your hardware. From Bill Bitner's z/VM System Limits
SHARE presentation:
Virtual machine size:
- Supported/Tested 1 TB (240)
- Hardware limits
* z10 8TB
* z9 1TB
* z990 256GB
* z900 256GB
That's for one virtual machine. There's also a guest real limit of 8 TB
Mark,
ISFC links can be ESCON CTC or FICON CTC. I don't know why Hipersockets
aren't supported, but they're not. If you really want to share SFS
filepools between LPAR's on the same CEC without using a CTC, you could
set up IPGATE using TCP/IP over a Hipersocket. Note that IPGATE is not
In our case, we're talking about going from 76 GB to 140 GB. We're trying to
stay ahead of requirements, so suggestions such as look at your performance
monitor don't really work. The workload that will use the additional capacity
hasn't arrived, yet. I need to submit my disk requirements
On of our z/VM 5.4.0 systems is about to grow to 140 GB of storage. Given our
target overcommit ratio of 3:1, and IBM's advice to keep paging space no more
than 50% full, this should just about fit onto 240 or 248 3390-3 sized volumes.
My question is what will happen the next time we add
I put all maintenance on a second-level system and test it before
putting it on a production system. Sometimes the nature of the change
is such that it won't get much of a test on a guest, but I still do it.
Dennis
A slipping sear could let your M203 grenade launcher fire when you
PUT2PROD was changed awhile back so that it doesn't bounce TCPIP. I don't
recall when it was changed, but I know that it doesn't bounce TCPIP on z/VM
5.4.0.
Dennis
A
I heard from a couple of performance people at SHARE that we should have 20% to
25% of the total storage in an LPAR configured as expanded storage. Naturally,
that's a guideline and the proper amount varies by workload. What should I
look at to determine if we have enough expanded storage?
SERVICE ALL STATUS will tell you if you ran PUT2PROD for a PTF. Here's an
example:
service all status PK97438
VMFSRV2760I SERVICE processing started
DASD 0491 LINKED R/W; R/O BY14 USERS
DASD 0492 LINKED R/W; R/O BY14 USERS
VMFSRV1226I TCPIPSFS (5VMTCP40%TCPIPSFS) APAR PK97438 (PTF
will receive message HCP986I TOD Clock
Synchronized via STP.
Hope this helps,
Matt
Matthew J. Rosato
z/VM I/O Development
From: O'Brien, Dennis L dennis.l.o'br
I understand that VM64814 adds XRC timestamp support. The PTF's are available.
The z/VM platform update at SHARE mentioned that there would be a SYSTEM
CONFIG change to activate it. Where do I find information on that? The recent
SSL changes had a nice web page with all the details, and one
System [mailto:ib...@listserv.uark.edu] On Behalf
Of O'Brien, Dennis L
Sent: Saturday, September 18, 2010 12:43 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: [IBMVM] DEFINE HYPERPAV requirement
I prefer to have all device-related statements for guests in the directory,
even those that are only defined
IBM will sell you a virtual z10. The virtualization is so good that it
looks just like a real one. The price is even the same.
Seriously, the answer is no.
Dennis
A slipping sear could let your M203 grenade launcher fire when you
least expect it. That would make you quite
configuration wasn't 'ready for prime
time' :-)
Les
O'Brien, Dennis L wrote:
IBM will sell you a virtual z10. The virtualization is so good that it
looks just like a real one. The price is even the same.
Seriously, the answer is no.
Dennis
A slipping sear could let your M203
I prefer to have all device-related statements for guests in the directory,
even those that are only defined by commands, such as HyperPAV aliases. I'm
running into the restriction that the combined length of all COMMAND statements
cannot exceed 3071 characters. Currently, each HyperPAV alias
I put CP SET SYSOPER * in OPERATOR's PROFILE EXEC. That way, OPERATOR
will become the system operator when it logs on. We run VM:Operator
here, so I also issue QUERY SYSOPER in the TITLE exit, which runs once a
minute. If it's not set, the exit sets it. If it's set to someone
else, the exit
The z/VM Platform Update session at SHARE in Boston said that XRC timestamps
were coming soon (Sep-Nov) for z/VM. Will that be for both 5.4 and 6.1, or 6.1
only? As we saw with the SSL server changes, what was said in the session is
not necessarily definitive.
z/VM 6.1 is needed for Z196 hardware. z/VM 5.4 will not run on it.
Incorrect. z/VM 5.4 will run on a z196. z/VM 5.3 and earlier will not.
Dennis
A few more
?
Marcy
-Original Message-
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf
Of Alan Altmark
Sent: Thursday, August 26, 2010 1:18 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: [IBMVM] XRC timestamps for z/VM
On Thursday, 08/26/2010 at 03:39 EDT, O'Brien, Dennis L
I use an exit in node DTCPARMS that checks the DR status using the CPU serial
number, e.g.
.*---
.* Add user exit to stack startup
Marcy,
I use ICKDSF to format all new DASD that is assigned to a VM LPAR, whether it's
a new purchase or transfer from z/OS. It might not be necessary, but it
doesn't hurt. I run eight format jobs in parallel using VM:Batch, so it
doesn't take very long.
When we had VM-only machines, the z/OS people had a way of doing HCD
updates through the HMC. They didn't send any files to VM. I don't
know the details on how that's done.
Dennis
If I could not go to heaven but with a [political] party, I would not
go there at all. -- Thomas
Note that this article is from Maureen O'Gara, who bears the same
resemblance to a journalist that an 8086 does to a z10. She's
consistently snide for no reason, and makes things up as she goes along
when she doesn't have the facts.
Ah, the Rita Skeeter of computer journalism.
Dennis
Can someone tell me how many SFS blocks there are per 3390-3 cylinder? I have
a user wanting the equivalent of 300 cylinders of SFS Directory space.
Scott,
There are 180 4k-blocks per 3390 cylinder (any size 3390). SFS uses 4k blocks.
Be careful with FORCE DISC. If the user has any VM:Schedule jobs scheduled for
his userid, they won't run if the userid has been left idle and disconnected.
Dennis O'Brien
http://finance.yahoo.com/news/IBM-to-buy-ATTs-Sterling-unit-apf-3343842118.html?x=0
Well now maybe Connect:Direct for VM will get SSL and DNS support and lose the
VSAM stuff?!!
Unless IBM gives it to their Tivoli unit, in which case mainframe support will
languish for a few years and then be
Interesting. Is this related to Mantissa's z86VM project?
Dennis
The art of taxation consists in so plucking the goose as to obtain the
largest amount of feathers with the smallest possible amount of
hissing. -- Jean-Baptiste Colbert, 17th-century French minister of
finance
From:
Stephen,
Here's what my systems have. These limits came from the starter system.
I didn't change them.
q limits for sslserv vmsys
UseridStorage Group 4K Block Limit 4K Blocks Committed Threshold
SSLSERV 21800
We used to have z/VM-only machines here. The IOCP was maintained by the
z/OS people using HCD. They had a method of using the HMC to import the
configuration into the z/VM machine. We didn't use an IODF, just an
IOCP. These were 2064's in basic mode, but I would imagine that the
process still
Mark,
I honestly don't remember if we had to POR. We haven't had z/VM on
2064's for quite awhile now. With 2084 and later machines, we've always
had at least one LPAR running z/OS on each box. I don't think that's a
policy, it's just the way things have worked out.
Dennis
See, I'm a
is a
relative breeze.)
Seriously, the easy way takes three different operating
systems to upgrade one of them? I think I see Richard's
problem: he was only using two ... :-/
-Chip-
On 2/2/10 00:57 O'Brien, Dennis L said:
Richard,
I think the TERS files are the RSU. My order
to download the (probably big honkin') files to a PC, unzip
them there, and then transfer them back to z/VM? sigh
I hope not!
Mike Walter
Hewitt Associates
The opinions expressed herein are mine alone, not my employer's.
O'Brien, Dennis L dennis.l.o'br...@bankofamerica.com
Sent by: The IBM z/VM
Richard Schuh wrote,
Dennis, You said 16 hours to upload the files. Are you using a 56KB dial-up
connection? My PC is about 1000 miles from the VM system, so I thought it
might be slower than the 33 minutes it took. I was hoping for something
better than 16 hours, but I didn't expect it to be
Mike has a lot of good ideas here, but I'll comment on a couple of minor points.
1. We have multiple VM systems in our shop, so changing the node name during a
disaster would cause more problems than it would solve. We have too much code
that does things like If node = 'VMSYS1' Then Do ... to
Richard,
I think the TERS files are the RSU. My order download link has
expired, so I can't go back and check. The install files are in ZIP
format. I have four ZIP files:
cd813250.zip contains the system image DVD install files for CKD DASD.
CD813260.ZIP contains the system image DVD
I'm setting up a DR process for a new system. I need to use a different
PROFILE TCPIP when the system is up in the DR site. I know that the easy and
wrong way is to update TCPIP's PROFILE EXEC to copy the correct PROFILE TCPIP
to the A-disk. I'm trying to do it the right way, by using a
Richard,
The instructions assume that you download the ZIP files to Windows
machine, and upload to your VM system from there. If you have a Linux
guest on VM, you might be able to download the files to it, instead.
Dennis O'Brien
See, I'm a man of simple tastes. I like dynamite, and
...@listserv.uark.edu] On Behalf Of O'Brien, Dennis L
Sent: Friday, January 22, 2010 3:38 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: z/VM 6.1 Delivery
Richard,
The instructions assume that you download the ZIP files to
Windows machine, and upload to your VM system
Our storage architect asked me about using FCP channels for Linux on z/VM. Are
there any good Redbooks or other documentation that's recent? He couldn't find
anything that mentioned z10. He's particularly interested in limits
(guests/LUN's/device addresses per channel, etc). CP Planning and
Our storage architect is trying to get us to use 3390-9's instead of 3390-3's
for paging. I know that z/VM doesn't use PAV or HyperPAV for paging, and that
more devices means more concurrent I/O's. Has anyone actually tried changing
from 3390-3's to one-third as many 3390-9's? If you have,
Is anyone successfully mirroring DASD using Hitachi Universal Replicator (HUR)
for a z/VM environment with Linux guests? I know that there are challenges
because z/VM doesn't timestamp its I/O but Linux does. I'm being told that HUR
doesn't support Linux timestamps. Is that true? Allegedly,
No, VM:Account does not need a write link to the object directory. VM:Secure
and VM:Director are the only VM:Manager products that need a write link to the
object directory. MAINT 123 will show up as OS-formatted when you access it
under CMS. That’s normal.
Single System Image is not in z/VM 6.1. It's a Statement of Direction,
which means IBM intends to put it in a future release, but isn't
promising anything.
Dennis
Of all tyrannies, a tyranny exercised for the good of its victims may
be the most oppressive. It may be
We share DASD between two z/VM LPAR's, and have guests set up so they
can log on to either one. We use the Cross-System Link (XLINK) feature
of CSE to make sure that they don't try to run on both LPAR's at once.
Dennis
Of all tyrannies, a tyranny exercised for the good
I'm setting up Performance Toolkit according to the instructions in
Getting Started with Linux on System z for z/VM 5.4.0. This is just
for a proof of concept, so I'm starting with the defaults. The PROFILE
EXEC for MONWRITE on page 144 contains the following MONITOR EVENT
commands:
'CP MONITOR
CP SEND CP VMSERVR DETACH xxx. You need to be the secondary user or have
privilege class C.
Dennis
Of all tyrannies, a tyranny exercised for the good of its victims may be the
most oppressive. It
Anson,
z/VM 5.2.0 is out of support from IBM, so it doesn’t officially “support”
anything. If it works, it works, but if it doesn’t, you won’t be able to open
a problem call. z/VM 5.2.0 went out of support on 30 Apr 2009. If those z/OS
releases came out before that time, there’s a good
Frank,
Update SYSTEM NETID on MAINT 490. PUT2PROD copies the 490 to the 190
after the S-disk is serviced. If you need to change SYSTEM NETID and
don't have any service to apply, make the update on both disks.
Dennis
Of all tyrannies, a tyranny exercised for the good of
It was in the 5.3 base.
Dennis
Of all tyrannies, a tyranny exercised for the good of its victims may
be the most oppressive. It may be better to live under robber barons
than omnipotent moral busybodies. The robber baron's cruelty may
sometimes sleep, his cupidity may
Frank,
The standalone dump program cannot be placed on the sysres, but it can be on
another CP-owned volume. Our convention is to place it on the first page
volume.
Dennis O'Brien
My computer beat me at chess, but it was no match for me in
I don't know what zVM0 is, so I can't answer your question.
Reading the whole sentence, (zVM0 was meant to be (zVM). He just didn't hold
the shift key down for the right paren. Yes, I know it should be z/VM.
Dennis
My computer beat me at
So if that's all there is, why would anyone bother to install z/VM 6.1?
1. To keep your capacity planning people from moving your system to an old z9
that they're trying to find a use for.
2. Performance improvements for virtual switch.
3. To have something to put on your performance plan.
Pricing didn't change, unless the price of one Value Unit changed, which I
doubt. I compared the 6.1 and 5.4 announcements. They both use Value Unit
exhibit VUE021.
Dennis O'Brien
My computer beat me at chess, but it was no match for me in
CA VM:Tape has an exit that can instruct the service machine to perform a DSE
on scratch mounts. If you have the product, you could just enable the exit and
scratch mount all of the tapes that you want to discard.
Dennis
My computer beat me at
Jim,
Try raising the virtual storage to 2047M, assuming your system is big
enough to handle that. If that's not enough, you'll need to find
another solution.
Dennis
My computer beat me at chess, but it was no match for me in kickboxing.
5-1. The ESM hook into CP is configured by replacing the HCPRPx stubs in
CP. It's not in a configuration file. There might be a Product record
in your SYSTEM CONFIG file to enable RACF, like there is for RSCS, but
that doesn't prove that RACF is active.
5-2. The Journaling statement in
What security problems in T-Disk? If you enable Clear_TDisk, there's no
security problem. Even if the system crashes while confidential data is on a
T-disk, it's cleared at IPL time before the T-disk space is eligible to be
given to users.
Stephen,
If you Enable the Clear_Tdisk feature, all system T-disk space is
cleared at IPL time the entire T-disk is cleared when it's detached, and
if you attach a new T-disk volume to SYSTEM, all space on that volume is
cleared. Turn on the feature, IPL, then detach one of your T-disk
volumes
Lee,
Do the userid you were trying to log onto and your external security manager
both have OPTION QUICKDSP in the directory? Your operator userid should also
have QUICKDSP.
Dennis O'Brien
My computer beat me at chess, but it was no match for
Frank,
Yes. Detach the volume from the system, attach it to yourself, change the
allocation map, and reattach to the system. CP will read the new allocation
map when you attach.
Dennis O'Brien
My computer beat me at chess, but it was no match
Mike,
The statement, Since TDISK are in your CP_Owned list, they can't be brought
offline on a running system is incorrect. There's no restriction on detaching
CP Owned volumes from system, as long as no space is in use. Frank stated that
as one of his assumptions. Once it's detached, you
on this problem.
On Tue, Sep 1, 2009 at 7:45 PM, O'Brien, Dennis L
dennis.l.o'br...@bankofamerica.com
mailto:dennis.l.o%27br...@bankofamerica.com wrote:
We're starting to test hipersockets between Linux guests on z/VM and
z/OS systems in separate LPAR's. z/OS is having intermittent trouble
pinging one
Howard,
A password of NOLOG does not allow AUTOLOG or XAUTOLOG. Set the
password to AUTOONLY if you want to allow AUTOLOG/XAUTOLOG but not
LOGON.
Dennis O'Brien
I couldn't remember how to throw a boomerang, but eventually it came
back to
We're starting to test hipersockets between Linux guests on z/VM and z/OS
systems in separate LPAR's. z/OS is having intermittent trouble pinging one of
the four Linux guests, but is fine with the other three. All four Linux guests
have no trouble pinging z/OS. Someone suggested that the
Ismael,
You can issue the mount command from another LPAR. If the other LPAR is
z/VM, this can be a VMTAPE MOUNT or DFSMSRM MOUNT command. If you have
only one z/VM LPAR, then you'll have to issue the mount from z/OS. I
don't know the command for that.
Another option is to have a small
Rick,
Are you asking about session 9146? I'm responsible for z/VM disaster
recovery at my site. We're just getting started with Linux on z, so we
don't have disaster recovery for Linux guests, yet. We have DR for CMS
applications, and we also host z/OS guests as part of the z/OS DR
process.
Oops. That wasn't meant for the list.
Dennis
I couldn't remember how to throw a boomerang, but eventually it came
back to me.
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of O'Brien, Dennis L
Sent
and delete this message. Thank you for
your cooperation.
-Original Message-
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf
Of O'Brien, Dennis L
Sent: Tuesday, August 04, 2009 9:26 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: [IBMVM] SSL DTCSSL022E message
Howard,
There was a discussion about running the z/VM 5.3 Evaluation Edition on
Hercules a few months back. I don’t think a definitive conclusion was reached.
Here’s the relevant paragraph from the license agreement:
Usage Restrictions
z/VM Version 5 Release 3 Evaluation Edition
I don't think IBM would see you a new license for z/VM 6.1 on a z9, but if you
have an existing z/VM version 5 license with Subscription and Support, you're
entitled to version upgrades at no extra charge. Read the fine print in your
license agreement. You shouldn't expect support for z/VM
You can create a storage group 3, move your filespaces to it with
FILESERV MOVEUSER, then disable storage group 2 with FILEPOOL DISABLE
GROUP 2 EXCLUSIVE DETACH. You can then replace the old storage group 2
minidisks with 1-cylinder minidisks. This isn't completely transparent,
because FILESERV
Sunny,
CSE itself is not a product. It’s part of z/VM. Chapter 10 of CP Planning and
Administration describes the requirements and capabilities of CSE. RSCS is
required if you’re using DirMaint to maintain a single source directory for the
cluster, and you don’t enable cross-system SPOOL.
I really looking for the manual to setup linux system on two z/VM.
Could you give me the detail manual ?
z/VM CP Planning and Administration
Dennis O'Brien
That's one small
Sunny,
If you really have two guests up at the same time, using the same DASD, I can’t
believe that one or both of them haven’t crashed.
We have the same guests defined on two z/VM systems. We use the XLINK feature
of CSE to make sure that only one of them can get the DASD read/write. If
In the meantime, I would seriously think about removing most of the privilege
classes
from that guest's definition in USER DIRECT. I might be wrong, but I don't
think z/OS
needs all that.
It doesn't. Our z/OS guests run just fine with class G. Some of them used to
have class B to run MIA's
Mike,
zA would come after z9, not z10.
Dennis
A good plan, violently executed now, is better than a perfect plan next
week.. -- General George S. Patton
-Original Message-
From: The IBM z/VM Operating System
Encryption should be the responsibility of the backup/restore product. IBM
already has encryption hardware on the machine. VM:Backup exploits it today.
I don't know about other products.
Dennis
A good plan, violently executed now, is
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