Now this is good...no smart ass toys r us remark anywhere. I agree RAID controllers can cause a very bad day...as can failed HD's. Can we agree that while MTBF has gone up, that hard drives are not mythical machines that never fail?
A 25 user client base needing access to data 24/7. The client wants minimum downtime. What would you build this client so you don't get a call about a HD failure and his 25 users sitting twittling their thumbs? I'm open to any solution that works. Thanks. Mike On Mon, Sep 8, 2008 at 11:15 AM, John DeCarlo <[EMAIL PROTECTED]> wrote: > mike, > > You should look at real-world examples sometime. > > In one lab where I spend a bit of time, there are about 80 computer server > systems. Five years ago, all of them had RAID, and there would be a hard > drive failure out of the 300 or so hard drives at least once a month. Pull > it out, drop a new one in. About three times a year, a RAID controller > would go bad - disassemble everything, put in the spare identical RAID > controller, be back and running in a day. Every year, maybe twice a year, > there would be a RAID controller failure and no more replacements. Then > you > rebuild everything from backup onto new hardware. > > Today, there are some RAID on some of the older servers, but no one buys a > system with RAID any more. Not worth the expense of having to buy > multiple, > identical RAID controllers at the same time. And, the current best > practices are often to use shared storage on the network - NAS, SAN, etc. > Some of the NAS have software-based RAID mirroring to allow for a drive > failure without losing data for even a minute. > > But what the admins are really looking at is having the same data > replicated > on multiple NAS. You can do a lot of that with a good SAN, but > interoperability issues and expense can limit you there. Also, hardly any > server runs its own local database. There are dedicated database machines, > some with Oracle, some with MySQL, and they are all replicated to other > machines on the network. > > Does this help you any? > > On Sun, Sep 7, 2008 at 6:59 PM, mike <[EMAIL PROTECTED]> wrote: > > > I'm still waiting for the > > solution that improves on the old RAID technology..now we sit and wait > for > > > > -- > John DeCarlo, My Views Are My Own > > > ************************************************************************* > ** List info, subscription management, list rules, archives, privacy ** > ** policy, calmness, a member map, and more at http://www.cguys.org/ ** > ************************************************************************* > ************************************************************************* ** List info, subscription management, list rules, archives, privacy ** ** policy, calmness, a member map, and more at http://www.cguys.org/ ** *************************************************************************
