I agree with Kirk, the 720. As many drives as you can stuff in there
(remember disk arm performance) with RAID6 and your almost as safe as
mirroring. I don't see any mention of LPAR but remember with a 720 4
way, you need to host the LPARs on IBM i or VIOS if you need them. (Now
your using an HMC or LVM as well)
I would have a real serious look at the internal RDX drive (the usb
attach I have works but it's slower) for back up. Looks and reacts like
a DVD on massive steroids. I've done all manner of testing with it and
it does well. Two concerns; first the cartridges are more expensive
than tape, but because they are really 2.5 inch hard drives they don't
have some of the drawbacks of tape either. The second is speed. They
are a bit slower than LTO but if that's not an issue.....
Now the real kicker. LTO5 internal on a 710/720 = $5000. RDX internal
= (about, I have not seen final pricing) $700. You can buy a lot of RDX
carts for that kind of money. RDX carts run from 360Gb to 1TB.
V7 with TR5 is required for the RDX units. They have a USB unit that
plugs into any of the USB ports on the 720, sweet. As my customers all
get to TR5 I'm using the RDX unit for PTF application etc. Avoids using
the storage on the system and it's fast enough, particularly on systems
with only a four drives, to make sense.
Sorry if this sounded a bit like a commercial but the technology is
really cool, finally available to IBM i, and no one seems to be talking
Chief Technical Architect
Agile Technology Architects
On 12/4/2012 9:07 PM, Kirk Goins wrote:
Frankly from a performance point I do not like mirroring, maybe on the 720
with the cache it may be fine. Day to day use OK, but PTFs, Upgrades etc I
really like a 4 drive Raid set.
I don't think you can get less than 8Gb these days and as long as they
don't want to run WebQuery, WebSphere etc then 8 will be fine.
Tape if you can get then to spend the money then LTO is the way to go. I
have only sold 1 system with a DAT drive and it worked but compared to LTO
it took forever to do much of anything. the720's can have the LTO5
internally and LTO4 media has gotten cheaper than 1/4inch media.
IBM will tell ya the 710 was designed for Linux/AIX and I am not sure you
can get a Deskside model
On Tue, Dec 4, 2012 at 6:52 PM, franz400<franz400@xxxxxxx> wrote:
> Looking for recommendations (they already have the BP) for a low end
> Replacing a couple Advanced 36 systems, one local, other will be remote
> via vpn.
> Will run programs in s36 mode, but hopefully they will add newer features
> (email, advanced printing (pdf), some edi, light web hosting)
> Each system currently has 3 - 5 users each.
> Considering the 8202 DAT tape drive - i see they now offer a usb attach.
> 2- 146 Gig drives mirrored (maybe 4) - (is there a better option? have
> occasional need for up to 80 gig useable)
> tower model (under a desk)
> legacy dev tools
> sql development tool
> system i access
> (having trouble finding weblink of software products avail to review...
> How much memory needed to drive system and up to 10 users and couple
> printers, with room to expand?
> How limiting is the entry 710 vs entry 720?
> Since it appears 1/4 inch cartridge tape not supported, am expecting to
> ftp the libraries from an intermediary (520) system. Any other options?
> Even though BP will answer these, I appreciate the experience on this list.
> Jim Franz