Thanks, that's what I thought, but wanted to be sure...
Lee
Alan Altmark wrote:
On Tuesday, 12/16/2008 at 11:07 EST, Lee Stewart
wrote:
I speak EDEVs, but for various reasons EDEV is not a choice for this
customer. They only have SAN disks - raw LUNs. (The VM system itself
is installed on
On Tuesday, 12/16/2008 at 11:44 EST, Kris Buelens
wrote:
> But, using simulated FBA minidisks incur higher CP overheads that
> letting Linux use the FCP channels.
The question was how does RACF protect FCP. If you want RACF to protect
access to LUNs there is no choice but to use minidisks. An
The overhead is real, but its cost is not clear.
The difference between the performance of direct FCP -vs- EDEV has not
been fully measured (or at least not widely reported.)
I'm still looking for numbers.
Which is faster? For a guest to perform QDIO or for CP to handle it?
Traditionally, we hav
But, using simulated FBA minidisks incur higher CP overheads that
letting Linux use the FCP channels.
2008/12/16 Alan Altmark
>
> On Tuesday, 12/16/2008 at 11:07 EST, Lee Stewart
> wrote:
> > I speak EDEVs, but for various reasons EDEV is not a choice for this
> > customer. They only have SAN
On Tuesday, 12/16/2008 at 11:07 EST, Lee Stewart
wrote:
> I speak EDEVs, but for various reasons EDEV is not a choice for this
> customer. They only have SAN disks - raw LUNs. (The VM system itself
> is installed on the few ECKD volumes -- all the Linuxen are on SAN
only.)
Sorry, Lee; I misr
I speak EDEVs, but for various reasons EDEV is not a choice for this
customer. They only have SAN disks - raw LUNs. (The VM system itself
is installed on the few ECKD volumes -- all the Linuxen are on SAN only.)
Lee
Richard Troth wrote:
You want EDEV.
EDEV lets FCP disks look like traditio
On Monday, 12/15/2008 at 07:36 EST, Lee Stewart
wrote:
> Hi allDoes the new RACF (VM Security Server) handle protecting
> FCP disks? If so, how? By FCP device/CHPID? By target WWPN? By
> target LUN?
>
> I browsed the books but didn't find any FCP references...
As Rick says, it's do
You want EDEV.
EDEV lets FCP disks look like traditional FBA DASD, so you can slice
them up into minidisks, quite like CKD.
The way it works is you define an EDEV at some otherwise not-in-use
RDEV address, then add WWPN and LUN for each path to the intended FCP
disk. You then VARY ON the EDEV an
Hi allDoes the new RACF (VM Security Server) handle protecting
FCP disks? If so, how? By FCP device/CHPID? By target WWPN? By
target LUN?
I browsed the books but didn't find any FCP references...
Thanks,
Lee
--
Lee Stewart, Senior SE
Sirius Computer Solutions
Phone: (303) 798-295
