Please create an account to participate in the Slashdot moderation system


Forgot your password?
DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. Check out the new SourceForge HTML5 internet speed test! ×

Submission + - Chernobyl's new sarcophagus now in place

MrKaos writes: 30 years and seven months since the explosion that set all of this in motion the project known as the 'Shelter Implementation Plan' has been rolled into place sealing the crippled Chernobyl reactor. More than 10,000 people were involved in the project, which includes an advanced ventilation systems and remote controlled robotic cranes to dismantle the existing Soviet-built structure and reactor.

This sarcophagus – or New Safe Confinement (NSC) – is taller than the Statue of Liberty and larger than Wembley stadium.

Comment Re:Maybe (Score 2) 93

That's some pretty old-school thinking there. For modern storage arrays with decent caching algorithms the level of RAID protection often has little to do with IO response time and throughput. I've dealt with DBAs who have insisted their archive and redo logs live on RAID-1 or RAID-10 storage because that's what they were taught oh-so-long-ago. They want me to carve out and dedicate four spindles for them to do RAID-1 on a storage array with nearly a thousand spinning disks in it. I've got a storage array with half a terabyte of cache or more, 100% write cache hits and 95+% read cache hits. 4 spindles vs 1000 servicing IO with some extra RAID overhead? Not a difficult call.

Comment Re:Just a test server? (Score 1) 44

I believe it to also be common practice to sanitize production data that goes anywhere except where it's absolutely needed. The sensitive stuff in databases gets replaced with bogus data or whacked all together. If you had, say, credit card data on various prod servers there are regulatory reasons that would prohibit a straight mirror of that data to put on a test server to play with. Not to say they follow such regulations, but it may be reasonable that a test server was compromised and nothing of value was exposed.

Nmap 5.20 Released 36

ruphus13 writes "Nmap has a new release out, and it's a major one. It includes a GUI front-end called Zenmap, and, according to the post, 'Network admins will no doubt be excited to learn that Nmap is now ready to identify Snow Leopard systems, Android Linux smartphones, and Chumbies, among other OSes that Nmap can now identify. This release also brings an additional 31 Nmap Scripting Engine scripts, bringing the total collection up to 80 pre-written scripts for Nmap. The scripts include X11 access checks to see if on a system allows remote access, a script to retrieve and print an SSL certificate, and a script designed to see whether a host is serving malware. Nmap also comes with netcat and Ndiff. Source code and binaries are available from the Nmap site, including RPMs for x86 and x86_64 systems, and binaries for Windows and Mac OS X. '"

Comment Re:Same mantra as Storage virtualization (Score 1) 250

A little off-topic, but if you're moving from one vendor's storage virtualization approach to another's, I agree that you may need to do some sort of painful host-based migration. But if you're buying storage from multiple vendors you're basically stuck doing a lot of host-based migrations anyhow. Throwing storage virtualization into the mix means you'll only need to do this when you want to change virtualization vendors rather than every time you buy another storage array.

There is somewhat of a lock-in factor with storage virtualization, but it sure can be useful once you've got it. For completely non-disruptive data migration the work what would otherwise take months for a team of people can be scripted by one person and trickled over in a few weeks.

Comment Re:But its the future (Score 1) 196

How many of these 2.0TB SATA drives are you going to purchase to do the same number of random cache miss IOPS that a single SSD can do? The math does not lie, applications are out there that can gain massive performance improvements and save money at the same time using SSDs. It's so easy to say hey, re-architect your application. Guess what? Mission critical apps grow organically and are not always optimized. How heavily used will your application get before even your optimized IO creeps into the realm of "I/O patterns so messed up that today's horrendous SSDs actually lower your cost per I/O"? How much money do you think the bank/nation-wide retailer/wall street firm would need to spend to "rethink their information architecture"? Not to mention power and cooling of a room full of short-stroked 2TB SATA disks vs one cabinet of SSDs.

SSD is not gaining traction simply because it's a buzzword and commands huge profit margins (both are true). It works. It solves real problems. In the right cases it saves money. If you spent some time in a larger organization I suspect you'd change your tune. You're comparing 2TB SATA apples to 256GB SSD oranges. Both may be fruit, but they're not interchangeable.

Comment Re:But its the future (Score 2, Insightful) 196

How many multi-petabyte enterprise data centers have you seen running SSDs as their primary storage? None. Yeah, that's what I thought.

Agreed that SSDs have a long way to go on price to compete, but it's simply not true that they're not yet ready for the enterprise datacenter. All the larger enterprise storage array vendors (EMC, HDS, IBM, NetApp) say they're ready, and most are shipping them with decent sales. Despite their price and the "fact" you've so eloquently stated, you'll find them in many Fortune 500 datacenters simply because they outperform spinning disks by such a factor that they're cheaper per IO. I believe today the vast majority of vendors providing enterprise-class SSD drives are sourcing them from STEC. They play some tricks to work around write limits, but they've got ~5 year MTBF ratings.

Comment Re:You're looking at this wrong (Score 1) 564

In reality, it's probably not as much of an IQ test of a potential employer as it is a test of potential employers' first line of HR flunkies. I've dealt with some painfully inept recruiters/HR people for otherwise respectable companies. You may be missing out on a good employment opportunity instead of dodging the bullet you refer to.

Slashdot Top Deals

"Probably the best operating system in the world is the [operating system] made for the PDP-11 by Bell Laboratories." - Ted Nelson, October 1977