Eric Bielefeld pisze:
I just read through a lot of the announcement letter from the link
quoted below. This sounds very interesting. I don't know what the
FICON Express8 channels cost, but I know if you just bought your
machine, and you decide you need those channels, you it will probably
cost a lot to convert. I know the last company I contracted for just
got their z/10 BC several weeks ago, so I'm sure they won't have the new
channels. The also were running z/OS V1.7 when I left.
One thing from the announcement letter puzzled me. This is from the
Software Requirements section, refering to the z/OS v1.7 Lifecycle
Extension:
"IBM Lifecycle Extension for z/OS V1.7:z/OS V1.7 support was withdrawn
September 30, 2008. The Lifecycle Extension for z/OS V1.7 (5637-A01)
makes fee-based corrective service for z/OS V1.7 available through
September 2010. With the Lifecycle Extension, z/OS V1.7 supports the
System z10 servers (z10 EC, z10 BC). Certain functions and features of
the z10 servers require later releases of z/OS. For the complete list of
software support, see the PSP buckets. For more information on the IBM
Lifecycle Extension for z/OS V1.7, refer to Software Announcement
208-283, dated August 12, 2008."
I know we had a discussion about the Lifecycle extension some time ago,
and a few people chimed in and said they weren't paying for the
Lifecycle Extension. They just put on all of the PTFs from the PSP
buckets and things worked fine. This was so you could run a z10 machine
using z/OS V1.7. I'm not sure what the quoted paragraph above says. Do
you have to pay for the Lifecycle Extension to be able to use these new
channels to get the maintenance, or can you just pull the PSP buckets?
I guess I'm just curious. I think curiosity is one attribute that makes
a good sysprog.
Does anyone think they will upgrade their z/10 to use the new channels?
I imagine the channels are just the first step. To fully utilize the
channels, you need to replace all your I/O gear, although it sounds like
there are some benefits with the new channels even without updating your
disk or tape drives.
Eric,
I don't think the new channels will be significantly more expensive. Of
course the change will be paid.
Last but not least:
- you don't need the channels if you don't have 8Gbps on the other end
of cable. I mean CU or switch for shared channels (rather theoretical
scenario - fully loade channel and multiple CUs connected).
- you don't need the channels if your current utilization is reasonably
low. From my limited experience - I have never observed >50% utilization
on my FiconEx4 channels connected to 4Gbps capable DASD CU. I use 4
channels, more port are available at both ends.
So, in my case I don't expect Ficon Express8 channels before z11 arrives
here. Good for current economy <g>
--
Radoslaw Skorupka
Lodz, Poland
--
BRE Bank SA
ul. Senatorska 18
00-950 Warszawa
www.brebank.pl
Sd Rejonowy dla m. st. Warszawy
XII Wydzia Gospodarczy Krajowego Rejestru Sdowego,
nr rejestru przedsibiorców KRS 0000025237
NIP: 526-021-50-88
Wedug stanu na dzie 01.01.2009 r. kapita zakadowy BRE Banku SA (w caoci
wpacony) wynosi 118.763.528 zotych. W zwizku z realizacj warunkowego
podwyszenia kapitau zakadowego, na podstawie uchway XXI WZ z dnia 16 marca
2008r., oraz uchway XVI NWZ z dnia 27 padziernika 2008r., moe ulec
podwyszeniu do kwoty 123.763.528 z. Akcje w podwyszonym kapitale zakadowym
BRE Banku SA bd w caoci opacone.
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
