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• PostgreSQL server: 10k RPM SAS or Intel 520 Series SSD drives?

  - by Vlad

  We will be expanding the storage for a PostgreSQL server and one of the things we are considering is using SSDs (Intel 520 Series) instead of rotating discs (10k RPM). Price per GB is comparable and we expect improved performance, however we are concerned about longevity since our database usage pattern is quite write-heavy. We are also concerned about data corruption in case of power failure (due to SSDs write cache not flushing properly). We currently use RAID10 with 4 active HDDs (10k 146GB) and 1 spare configured in the controller. It's a HP DL380 G6 server with P410 Smart Array Controller and BBWC. What makes more sense: upgrading the drives to 300GB 10k RPM or using Intel 520 Series SSDs (240GB)?

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• Laptop battery liftime from Dell specs?

  - by user26535

  Question: When I buy a Dell Laptop, I get the following choice for battery: (Lithium-Ion main battery with X cells and Y Wh [included in price/at additional $] Lithium-Ionen-Hauptakku mit 4 Zellen und 24 Wh [Im Preis enthalten] Lithium-Ionen-Hauptakku mit 9 Zellen und 85 Wh [zuzgl. CHF 120.01] Lithium-Ionen-Hauptakku mit 6 Zellen und 46 Wh [zuzgl. CHF 30.00 I figured that I can calculate that a 86 Wh offers +254% of the 24 Wh lifetime, but... Is there any way to calculate to what battery time this amounts in hours ? I mean how many hours will the 24 Wh last (at normal operation - eg. writing a document - not watching video), else the +254% is a pretty useless number... Also anybody knows whether 4 cells means 4 times 24 Wh, or 24 Wh in total?

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• What is a usable throughput for a home media server

  - by Craig

  I am looking to setup a home server that will act as a media server. This will include both video (possibly HD) and audio. The clients will be a fun mix of hardware but that is a different question. What I want to know is what is the minimum throughput for streaming video without hitches? Is there a "sweet" spot for throughput (price vs. throughput)? I am determining my budget for this "upgrade" and I need to evaluate wether or not upgrading to a 1 Gbps home LAN is required. Sure, it would be sweet and easily handle the traffic but I don't want to do it unless it is necesary.

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• NAS that supports NZB downloading for around £150 ($220) or less (without hard drive)

  - by Jigs

  I have seen a number of NAS's that are around that price, but I am worried that they may not be able to handle the processing of .rar files (I know that can be quite CPU intensive). Does anyone have any experiences with sabnzbd or hellanzb - or similar on their NAS? In terms of features the main requirement is NZB downloading - I am quite flexible on the other features. Wifi support would be nice, but not essential. Torrent downloading would also be nice. One disk drive would probably be enough. Easy installation of application would be nice... but again I am sure I can follow a tutorial.

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• Why is business-class storage so expensive?

  - by Mark Henderson

  This is a Canonical Question about the Cost of Enterprise Storage. See also the following question: What's the best way to explain storage issues to developers and other users Regarding general questions like: Why do I have to pay 50 bucks a month per extra gigabyte of storage? Our file server is always running out of space, why doesn't our sysadmin just throw an extra 1TB drive in there? Why is SAN equipment so expensive? The Answers here will attempt to provide a better understanding of how enterprise-level storage works and what influences the price. If you can expand on the Question or provide insight as to the Answer, please post.

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• Doubts about Cloud Infrastructure

  - by Pravin

  Maybe a little more of the same questions that others have asked but wanted to clarify my doubt, for some years run my hosting company (reseller of esds) and I've done well so far, but I am determined to bring quality and server technology to offer another level. So far I have understood that there is a difference between cloud and cluster servers because the cluster function as load balancers that distribute in different servers roles and use the servers less overloaded in the cloud is the union of multiple servers and then the same is vitualized unlike the cluster that is allowed to use the resources of the CPU and RAM servers in the virtualized environment. My approach is to use 3 dedicated servers to create a cloud server, My doubts: Does this type of cloud servers are only reserved for big companies? (Either because the union of the servers is done by hardware or software with high price) What characteristics should these servers meet? Possibly through software which should be used? Available? Thanks for your time, Cheers!

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• Replication with SQL Server 2005 Express Edition and SQL Compact Edition 3.5

  - by Andy Gable

  I need some information on SQL Server 2005 Express edition. What I want to do is have my central database servin local machine databases IE back office Cental database |------------------- Shop floor Terminal 1 |------------------- Shop Floor Terminal 2 |------------------- Shop Floor Terminal 3 |------------------- Shop Floor Terminal 4 |------------------- Shop Floor Terminal 5 |------------------- Shop Floor Terminal 6 I want is so that Shop floor terminals would PULL down ANY changes to the database as and when they happen (selected changes are needed change would be Add new item / Edit Item info that is used by Shop floor terminal (ie price, description, sale group) Is this possible with SQL 2005? I have the ability to make my own Sync Applciation but I would need to know what to look for in the database that trigers a update Many thanks for any advice you can give Andy

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• How to determine if a device is SATA driven and will be affect by the Sandy Bridge Intel Issue?

  - by joelhaus

  Looking to buy a higher-end Windows 7 laptop, but I'm concerned about the issue with the Intel Sandy Bridge chipset. Otherwise, my price range covers laptops within the latest (Sandy Bridge) generation of the Core i7 family. I understand that there is an issue with SATA ports 2-5 and I use a Windows Home Server over a WiFi connection to share files and backup my PC. The other storage devices that I will use (less frequently) are the built-in DVD-RW disc drive and various devices hooked up to the USB ports (i.e. Android devices, iPod, etc.). The question: Will this setup be negatively impacted by the problem Intel reported about Sandy Bridge? Given this information, is it unwise to purchase a laptop that has this flaw? I really don't know how to determine whether a device is SATA driven or not, so hoping someone can shed some light on this too. Thanks!

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• Anyone know of a good way to sell used servers?

  - by RandyMorris

  We have a couple of servers we no longer need now that we are fully hosted on a managed host (rackspace). They were purchased for over $10,000 each but we realize that over time their monetary value drops. Anyone have suggestions or experience selling these in a proper way? They are dual xeon processor 2U rack mountable with 4+GB RAM, intel boards, 6x 72GB 15,000 RPM SCSI Drives with raid controller redundant power supply. We are in Southern California area. I can be more specific on any information if there is interest. I know there is ebay and the like but these servers are like the family dog that has to be given up and we are looking for a proper home for a fair price. I will end up auctioning it off if need be in the end though. Thanks in advanced for any help!

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• Can Acer Aspire Revo (Atom 330) be used with two monitors simultaneously?

  - by LeeD

  I'm so attracted to Acer Revo for the price & the look. As long as I can work on two monitors simultaneously, I'll be happy. Not planning to do heavy video editing or gaming. Occasional movie streaming would be fine. Will mainly use it to do trading, lots of word processing, some photo editing, connecting with friends. Anyone has experience using Revo with 2 or more monitors? The spec says it has VGA and HDMI output but Acer sales person over the phone told me it can support one monitor only..??

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• Can I use a Mac Mini as a web server and database server? What are the pros and cons?

  - by Christopher Altman

  We are a bootstrapped web start up. We have a LAMP web application that we expect relatively low to mid traffic because users need an account to log in. Our current approach is to colocate two servers, a web and mysql database server. We are planning to use Ubuntu Server 9.04. We have shopped around for dedicated servers but the price range from $900 to $1500 per month, therefore we are exploring the colocation approach. We are considering purchasing two Mac Minis (2.0GHz Intel Core 2 Duo 2 Gb RAM) because we are familiar with the machines are the prices are relatively inexpensive. What are the pros and cons of using these 'non-server' grade machines? We would install Ubuntu Sever and attach firewire external hard drives. Any advice on how to set up 'good-and-economic' web/database servers is welcomed.

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• Xeon X5550 vs Six-core Opteron for database server

  - by gregmac

  I'm specing out a database server, and the price works out to be reasonably close between an Intel X5550 Quad-core and an AMD 2425HE (2.1Ghz) Six-core Opteron. I've been looking for some comparisons between the two, but the only thing useful I've found is an AnandTech Review of the 2435 which compares it to Intel Xeons, but concludes they both have their place. My load is MS SQL Server 2008, with an OLTP database that has about an equal amount of reading/writing (and it's a reasonably heavy load). So my question is, what is going to work better in this situation, assuming the drives are the same: Xeon X5550, with 16GB 1333Mhz RAM (Dell R510) or an Opteron 2425HE (2.1Ghz) or 2439SE (2.8Ghz) with 16GB of 800Mhz RAM? (Dell 2970) Note: the 2439 adds $500, but the overall pricing works out that it's not that much more than the R510. Using the 2425HE, the Dell 2970 server is slightly less than the similarly-equipped R510). If it adds a decent amount of performance, it's worthwhile to go faster. (single CPU, in both cases).

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• Choosing between a dedicated and virtual dedicated server for my startup

  - by MarathonStudios

  I'm about to launch a startup site I've been working on for some time, and I'm just now looking over hosting plans. The site's main feature is fairly processor-heavy (a lot of text processing), so I probably need something other then shared hosting to ensure I don't get shut down for overusing resources. I would like to spend as little as possible on hosting until the site starts generating income, so under-$60/mo is my goal. One caveat is that I need a Windows box for this particular site, so it's harder to get a good deal. For that price, I can either get a bottom-tier dedicated (2gigs ram, pentium 4) or a middle-tier VPS (3gb RAM, a bit more traffic and HD) for a few bucks more per month. I had a bad experience with a low-end VPS a few months ago, so making sure that whatever I get can handle the basic traffic of a website as well as giving me what I need (extra processing power) is essential. Do you have any suggestions as to which way to go, or a certain hosting company you've worked with that you can recommend?

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• How do I protect business critical data against fire?

  - by Bill Knowles

  We have 72 hard drives that contain our webcast inventory. The number is increasing. We're located in a frame building and we are afraid of not only fire, but catastrophic fire. I've priced fireproof safes that hold to the required 125F for hard drives. Their price is through the roof. Seems to me if we made backups of each of the hard drives and stored them off-site somewhere, or contracted with an online backup storage company, we might run up a bill buying backup drives that would approach the $7,000 cost of the safe! What's the best way to protect our data from the risk of fire?

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• Does HDMI cable "quality" actually affect transmission?

  - by TheDeeno

  I really don't want to pay a ridiculous price for a "name brand" HDMI cable if it doesn't really do anything for me. I'm just curious: now that most transmission is digital (packetized) is there such a thing as a "quality" cable? I suspect that if the cable works at all, I'm safe saying I have a quality connection. I just want to double check. Some of these reviewers complain that generic cables "create noise, lack bandwidth, can't handle X, etc". I'm skeptical of these reviews. If the logic for HDMI cables and quality can be applied to cables in general, please elaborate on that as well.

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• Running Windows 8 Consumer Preview to Pro

  - by elvispt

  Currently I have Windows 8 Consumer Preview installed I tried running the Windows 8 Upgrade Assistant, and it tells me, after checking for compatibility, that I can buy Windows 8 Pro for 29.99euros. Will I have any issues with this? Will I be able to perform a clean install from the downloaded file? I heard that I could not get Windows 8 Pro at this price, only If I had Windows 7 installed. The bottom line is, what kind of issues can I expect if I decide to go down this path? Will it ask me later for a key of Windows 7 to validate? Thanks.

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• Good Free Backup Tool - with provisos

  - by vaccano

  I have seen some Backup Questions around. But they are not quite what I am looking for. I would like to have a back up of my entire hard drive (to an external drive). I would like it to be the kind that has a base backup then just backs up the changes since the last backup. I would like it to be able to have a fully restorable image of my hard drive (not just key files). Lastly I would like it to be free (or super cheap). (The above requirements are important, but I will have to drop them if they up the price as my boss will not pay for them.) I have a Solid State Hard Drive 250 GB backing up to a 1TB external hard drive using Windows XP.

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• UPS recommendations for three grey boxes?

  - by Margaret

  Hey all We have a series of grey-box style computers acting as servers at my workplace (rather than rack-mount). We were looking to get Uninterruptible Power Supplies for them. However, I'm not sure how many at what capacity are required. I'd assume it would be a good idea to hook the peripherals in as well - there's a 18.5" LCD monitor with a KVM, along with a couple of USB hard drives that require power. I currently have the most vital machine hooked up to a cheap (temporary) UPS, but it's probably close to worse than nothing. I'm looking for reasonable value for money, though I can probably negotiate with my boss on price range. I recognise that I may well need to buy two (or even three) UPSs to support the three machines. Any recommendations?

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• Which is better for running Ubuntu and other Linux OSes, Chromebook or Windows, why? [on hold]

  - by Serge

  I'm learning programming and I would like to switch to a Linux OS, perhaps Ubuntu, to continue this, but the current machine is generally getting pretty old and slow and Windows is the least favorite option for production, and I can manage getting something new right around the price range of the nicest Chromebook on the market right now. However, I have compared specs of HP Chromebook 14 with those of regular PC laptops that roughly cost the same, and the latter consistently have approximately the same and sometimes higher (like the processor speed) specs. Yet usage of Chromebooks for this purpose is pretty widespread nowadays. Is this because they were initially built for a Linux OS - and is it really THAT crucial - or are there other major factors at play here?

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• Automatically keeping two excel data tables in-sync (w/out VBA)

  - by Neil

  I'm putting together a workbook for tracking a stock portfolio. The primary sheet contains a table with the list of the transactions. From this I would like to create an overview table on another sheet with only one row per unique stock symbol that includes things like cost basis, returns, etc. The problem is that nothing I've tried updates the overview table correctly when rows are added to the transaction table. The closest I've got is something like the following: http://www.get-digital-help.com/2009/04/14/create-a-unique-alphabetically-sorted-list-extracted-from-a-column/ However, this requires applying that formula to every cell in the primary column of the overview sheet. And even then the range of the table isn't extended down to include new rows as they become valid. Essentially I'm looking for a way that auto-adds rows to a table and copies the formula based on a different table changing without using VBA. Trivial example data Sheet1 Symbol Type Shares Price F Buy 100 12 MSFT Buy 100 25 MSFT Sell 50 28 F Buy 100 16 Sheet2 Symbol Quantity F 200 MSFT 50

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• Cheapest server per gigabit throughput [closed]

  - by nethgirb

  I'm looking for a set of servers for performance testing a network, and secondarily testing some applications on the servers. Their most important task is simply to pump out data: from an application like memcached or just dumped from a large file in memory into a TCP flow (i.e., disk performance doesn't matter). This should happen over one or more 1 gigabit Ethernet ports, and the machines should run Linux (ideally), or perhaps Mac OS X or some other *nix. Other than that, there are few constraints (e.g., even something ARM-based could be fine). So here's the question: What's the cheapest server per gigabit? Price and power are both considerations.

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• 10,000 RPM HDD (WD VelociRaptor) vs SSD for OS?

  - by GiH

  I currently have a 10,00RPM 150GB Raptor that I use for Vista. I'm about to upgrade to Windows 7, and while doing that I thought I'd buy another drive and install Ubuntu 9.10 on it. I don't want to partition the current drive I have, but I don't need 150GB for another OS. So, I'm having trouble deciding whether its worth it to buy a 64 GB SSD at the same price point as the 150GB WD VelociRaptor? Or should I just get a 7,200 RPM drive for really cheap (around $50)? Would it be better to use an SSD for the OS than a mechanical drive? I could always get a 32GB SSD too... Oh, and I don't want to virtualize Ubuntu because I'm going to be testing to see the differences in networking and overall performance.

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• Best wireless mouse/keyboard for conference room computer?

  - by Brett

  What would be the best wireless mouse and keyboard for a conference room computer that is used by multiple employees throughout the day? We have one in there right now that is really cheap that doesn't work half the time. This is due to the fact that the batteries run down when left on... and it seems to have problems losing its pairing with the computer dongle. Any ideas on something that won't have battery problems, is very reliable and somewhat tough? Price isn't too much of an issue, but I'd still prefer to get something for less than $100 just in case someone walks away with it.

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• How can I access my music anywhere?

  - by musicfreak

  So here's the idea: I use multiple computers on an almost daily basis. I would like to be able to access my entire music library from any of those computers through the Internet. Is there a service or perhaps some software that would allow me to host my music "in the cloud", or in some other way access it from a different computer? I've searched for something like this and the closest I've found is the Media Player application found in Opera Unite, but that requires my home computer to be turned on at all times, which is less than ideal. I'm willing to pay, but not so much that I could just rent a private server for a lower price. Thanks in advance.

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• Cheap windows shared hosting service

  - by Elangovan

  Hi I have recently purchased a domain from go daddy, now I am looking for a cheap windows hosting. Following are my requirements Shared Windows hosting Should be cheap in price Should have at least one SQL server Db and one mysql db. Should support atleast asp.net 3.5 and php Will be good if it has support for asp.net mvc (no problem even if it is not available also) Should be able to install third party blog sites. Bandwidth, total space and performance are not very important. Silverlight is also an added advantage (no problem even if it is not available also). There should be no advertisement or banner added by the hosting company in the site. Should have support for subdomains

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