My memory from the salesliming is that encryption is a "fabric service",
meaning that it can be applied per VSAN (and, thus, across all VSANs, was my
understanding).
The whole fabric
service bit seemed a bit handwavy to me. As long as you've got one module
enabling it in the 95xx frame, you can do it for all ports, and they're sure
it'll have enough bandwidth. I question that just based on scaling the crypto
calculations, but I haven't tested it one way or the other.
-- gabriel rosenkoetter Radian Group
Inc, Unix/Linux/VMware Sysadmin / Backup &
Recovery gabriel.rosenkoetter AT radian DOT biz, 215 231 1556
Gabriel,
Great Point.
Can this feature be enabled per
VSAN or on the entire switch ?
-Shyam
On Thu, Feb 28, 2008 at 8:45 AM, Rosenkoetter, Gabriel
< Gabriel.Rosenkoetter AT radian DOT biz>
wrote:
It's worth noting, on
the Cisco fabric switch side, that they offer a feature that Brocade does not
but that's increasingly attractive for FC-attached tape: in-stream encryption
without having to use a pass-through device (like Decru, now owned by NetApp,
sells) and without having to use tape drives that do that job themselves
(LTO-4). The whole "where to do tape backup encryption" question is a huge can
of worms (fun religious topics I'd really rather not argue about: ability to
migrate keys to another system, comparison of various products' key management
functionality), but if it's something you want to do and not something you
already do (cf, key migration: short version is that there isn't a good way),
it's worth considering if you're building out new tape
fabric.
-- gabriel rosenkoetter Radian
Group Inc, Unix/Linux/VMware Sysadmin / Backup & Recovery gabriel.rosenkoetter AT radian DOT biz, 215 231 1556
On Wed, Feb 27, 2008 at 10:49 AM, Shai Harmelin < shai.harmelin AT isilon DOT com> wrote:
I'm curious if
you or anyone on the list can provide some guidance into who are the 3 main
SAN switch vendors and who are the 3 main tape library vendors in the
enterprise market and how big is their cumulative market share
respectively.
I'll talk to the switch side of things - as a customer, not a
vendor. Brocade has traditionally been (by far) the largest edge switch
vendor. McData is/was 2nd, and then Qlogic. Brocade has since
bought out McData. Qlogic edge switches go into sites where the
customers want to do things very cheaply. It's not that the switches are
all that bad because I haven't heard that if they are - it's that Qlogic has
to compete on price because of the Brocade dominance.
On the director
side, McData had the numbers for the longest time but Brocade was catching up
fast. Before the merger, it was roughly a 1/3, 1/3, 1/3 split between
Brocade, McData, and Cisco. Brocade now has 2/3 of the
market.
From what I hear, Cisco directors go into sites
that are already Cisco shops (or educational institutions that pay a fraction
of what commercial customers pay) and at which the network groups manage the
SAN. Brocade goes into just about everywhere else. If you're an
HP shop, you're adding Brocade gear by default. They sold the McData
switches as an afterthought and now sell Cisco gear, but they'll always push
Brocade first. For EMC, it was traditionally McData all the way - after
all, McData was spun off of EMC in the first place. I don't know what
they're doing now - their spec sheets on the "Connectrix" line lists the
Brocade equivalents first and then Cisco. .../Ed -- Ed Wilts, Mounds View, MN,
USA mailto:ewilts AT ewilts DOT org
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