snip--
I saw a 1TB for $300 and heard about the same for under $300 at
Walmart (unconfirmed).
Ed
ps: They have a Fry's here in the Chicago Suburbs and everybody I
have talked to says that they will avoid it for anyplace else
(including me).
provides
(it's been half a decade since IBM made a disk drive).
Ron
-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Van Dalsen, Herbie
Sent: Friday, January 18, 2008 6:42 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: [IBM-MAIN] Flash memory arrays
, there just isn't anything like
first-hand experience...
Herbie
-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Ron Hawkins
Sent: 18 Januarie 2008 03:05 nm
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: Flash memory arrays
Herbie,
Good Guess, but IBM
In a message dated 1/18/2008 9:05:19 A.M. Central Standard Time,
[EMAIL PROTECTED] writes:
IBM, EMC and HDS send faulty drives back to Seagate and
Hitachi for analysis for their modular products as well. There is no
difference between drives used in Enterprise and Modular arrays. IT's not
On Fri, 2008-01-18 at 16:09 -0600, Tony Harminc wrote:
(I might be able to pick up an old 2105-F20 for the cost of a rental
truck. It's currently at 1.2 TB)
Someone with an MP3000 or the like might be happy to have it.
Or anybody thinking of bidding on an 890 maybe ...
Shane...
On Fri, 18 Jan 2008 12:40:16 -0600, Rick Fochtman [EMAIL PROTECTED] wrote:
I can't help but wonder: when a purchased storage array device is
decommissioned, are all those little drives of any use for PC
replacements? What sorts of interfaces do those drives require? (E)IDE
or SCSI of SCSI-2 ??
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-mai,alt.folkore.computers as well.
[EMAIL PROTECTED] (, IBM Mainframe Discussion List) writes:
Around mid-1999 EMC signed a multi-$billion contract to buy a HUGE number of
little disks from IBM
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.
[EMAIL PROTECTED] (, IBM Mainframe Discussion List) writes:
Around mid-1999 EMC signed a multi-$billion contract to buy a HUGE number of
little disks from IBM
On Thu, Jan 17, 2008 at 11:26 AM, in message
[EMAIL PROTECTED], Clark Morris
[EMAIL PROTECTED] wrote:
VSAM is already FBA
Sort of. A VSAM file, once loaded, consists of blocks of all the same size,
but VSAM allows more than one block size (e.g., 4K and 8K). FBA, to me,
means that
-Original Message-
From: IBM Mainframe Discussion List
[mailto:[EMAIL PROTECTED] On Behalf Of Rick Fochtman
Sent: Friday, January 18, 2008 12:40 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: Flash memory arrays
--snip
Around mid-1999 EMC
--snip
Around mid-1999 EMC signed a multi-$billion contract to buy a HUGE number of
little disks from IBM over a period of several years. So IBM was making
disks then. And I think that contract expired about half a decade ago.
On Fri, 18 Jan 2008 12:44:22 -0600, McKown, John wrote:
I think that they are either SCSI, or Fibre Channel. For a mere 1.2Tb,
you can use 3 500Gib eSATA drives.
I was at the PC store the other day and they had 1TB SATA drives for sale. I
didn't catch the price. I settled for a mere 250G for
@BAMA.UA.EDU
Subject: Re: Flash memory arrays
John,
I'm not sure I agree with this. If your comparing so-called enterprise
class array price with modular class systems then it is not a valid
comparison.
Assume a barebones DMX4, DS8K or USP-V with no software products except
a
basic element manager
memory arrays
In a message dated 1/18/2008 9:05:19 A.M. Central Standard Time,
[EMAIL PROTECTED] writes:
IBM, EMC and HDS send faulty drives back to Seagate and
Hitachi for analysis for their modular products as well. There is no
difference between drives used in Enterprise and Modular
@BAMA.UA.EDU
Subject: Re: Flash memory arrays
On Fri, 18 Jan 2008 12:44:22 -0600, McKown, John wrote:
I think that they are either SCSI, or Fibre Channel. For a mere 1.2Tb,
you can use 3 500Gib eSATA drives.
I was at the PC store the other day and they had 1TB SATA drives for sale. I
didn't catch
@BAMA.UA.EDU
Subject: Re: Flash memory arrays
On Fri, 18 Jan 2008 12:44:22 -0600, McKown, John wrote:
I think that they are either SCSI, or Fibre Channel. For a mere
1.2Tb,
you can use 3 500Gib eSATA drives.
I was at the PC store the other day and they had 1TB SATA drives
for sale. I
On 16 Jan 2008 08:57:35 -0800, in bit.listserv.ibm-main you wrote:
EMC announced DMX4 disk system ...without disks. Flash memory would be
used as a disk module.
Questions/observations:
1. End of magnetic platters ?
2. Another level of virtualization (or translation). Flash device
emulates disk
-Original Message-
From: IBM Mainframe Discussion List
[mailto:[EMAIL PROTECTED] On Behalf Of Clark Morris
Sent: Thursday, January 17, 2008 8:23 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: Flash memory arrays
On 16 Jan 2008 08:57:35 -0800, in bit.listserv.ibm-main you wrote
Subject: Re: Flash memory arrays
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of McKown, John
Only z/OS is stuck on ECKD formatted DASD. z/VM and z/VSE can
both run on FBA. z/LINUX can run on FBA and/or on SAN/SCSI
DASD. I think that the latest z/VM can also run
Ed,
Later models would save the contents of the SSD to disk. No different to
writes in cache in current disk arrays. In a power failure it's battery
backed, destaged, or both.
Ron
You have hit it the head. We had a unit that emulated a 2305 (don't
remember which model) it worked well .
/2008b.html#15 Flash memory arrays
i offered well over 25 yrs ago (i.e. 3370 fba). The response i got back
from the data management group was that (at the time) it would still
cost $26m for training, education, documentation, etc ... even if i
provided fully integrated and tested implementation
Clark Morris wrote:
On 16 Jan 2008 08:57:35 -0800, in bit.listserv.ibm-main you wrote:
EMC announced DMX4 disk system ...without disks. Flash memory would be
used as a disk module.
Questions/observations:
1. End of magnetic platters ?
2. Another level of virtualization (or translation). Flash
Vernooy, C.P. - SPLXM wrote:
Chase, John [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
m...
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of McKown, John
Only z/OS is stuck on ECKD formatted DASD. z/VM and z/VSE can
both run on FBA. z/LINUX can run on
In a message dated 1/17/2008 10:01:17 A.M. Central Standard Time,
[EMAIL PROTECTED] writes:
Does the ECKD dasd give us the ability to have fixed record lengths and
blocksizes?
Yes, but not automatically. Fixed record lengths and block sizes must be
imposed by the software first.
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of McKown, John
Only z/OS is stuck on ECKD formatted DASD. z/VM and z/VSE can
both run on FBA. z/LINUX can run on FBA and/or on SAN/SCSI
DASD. I think that the latest z/VM can also run on SAN/SCSI
connected DASD as
Chase, John [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
m...
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of McKown, John
Only z/OS is stuck on ECKD formatted DASD. z/VM and z/VSE can
both run on FBA. z/LINUX can run on FBA and/or on SAN/SCSI
and VSE people to find out how they solved the problem.
re:
http://www.garlic.com/~lynn/2008b.html#15 Flash memory arrays
http://www.garlic.com/~lynn/2008b.html#16 Flash memory arrays
http://www.garlic.com/~lynn/2008b.html#17 Flash memory arrays
next week is 40yrs since i started on virtual machines
-Original Message-
From: IBM Mainframe Discussion List
[mailto:[EMAIL PROTECTED] On Behalf Of Chase, John
Sent: Thursday, January 17, 2008 8:49 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: Flash memory arrays
-Original Message-
From: IBM Mainframe Discussion List
I'm curious about something. Does the ECKD dasd give us the ability to have
fixed record lengths and blocksizes? Can you do that in Unix and Windows?
It just seems to me that the file system in z/OS compared to the file systems
on Unix and Windows is a lot more robust. My feelings may be
://www.garlic.com/~lynn/2008b.html#16 Flash memory arrays
and/or latency issues.
in the same time-frame i originally offered FBA support ... i had also
done a channel-extender project for the IMS group in STL. STL was
bursting at the seams ... and they needed to move 300 from the IMS group
to remote off
On 17 Jan 2008 06:49:09 -0800, in bit.listserv.ibm-main you wrote:
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of McKown, John
Only z/OS is stuck on ECKD formatted DASD. z/VM and z/VSE can
both run on FBA. z/LINUX can run on FBA and/or on SAN/SCSI
DASD. I
In [EMAIL PROTECTED],
on 01/17/2008
at 08:48 AM, Chase, John [EMAIL PROTECTED] said:
Weaning z/OS from (E)CKD would likely be such a monumental change
Adding FBA support would be far easier than weaning z/OS from ECKD.
Provide a CI for BPAM, BSAM and QSAM, support VSAM use of FBA and most
On Thu, Jan 17, 2008 at 11:26 AM, in message
[EMAIL PROTECTED], Clark Morris
[EMAIL PROTECTED] wrote:
-snip-
There obviously would have to be a co-existence period where both
architectures are supported. VSAM is already FBA as are all of the
newer data architectures. The challenges will be
John,
I'm not sure I agree with this. If your comparing so-called enterprise
class array price with modular class systems then it is not a valid
comparison.
Assume a barebones DMX4, DS8K or USP-V with no software products except a
basic element manager and microcode. If the only difference is
EMC announced DMX4 disk system ...without disks. Flash memory would be
used as a disk module.
Questions/observations:
1. End of magnetic platters ?
2. Another level of virtualization (or translation). Flash device
emulates disk module. Disk modules are used for CKD emulation.
3. Maybe there is
EMC announced DMX4 disk system ...without disks. Flash memory would be
used as a disk module
Simply back to the future again. Solid state devices were prevalent twenty or
so years ago. Still, with today's technology it makes sense. Hopefully it will
provide both better performance (no seek
, 2008 9:02 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: [IBM-MAIN] Flash memory arrays
EMC announced DMX4 disk system ...without disks. Flash memory would
be
used as a disk module
Simply back to the future again. Solid state devices were prevalent
twenty or so years ago. Still, with today's
On Jan 16, 2008, at 11:02 AM, Bob Shannon wrote:
EMC announced DMX4 disk system ...without disks. Flash memory
would be
used as a disk module
Simply back to the future again. Solid state devices were prevalent
twenty or so years ago. Still, with today's technology it makes
sense.
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.
[EMAIL PROTECTED] (Ed Gould) writes:
You have hit it the head. We had a unit that emulated a 2305 (don't
remember which model) it worked well . except when we
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