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Questions tagged [capacity]

42 questions
19
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10 answers

How does one find which files are taking up 80% of the space on a Linux webserver?

The drive is constantly filling up. You've hunted down all the spare and random files you can. grep'd for coredump files and even removed some of the un-needed backups... What would be your next move. The actual server in question has 10GB of…
Gareth
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4 answers

How to use the full LTO-2 Tape backup capacity of 200/400GB?

I have an Ultrium 448 tape drive, LTO-2 tapes (200/400GB) and I'm using HP Data Protector as the backup client. The system is set to format and overwrite all tapes but I never manage to get more that ~150GB on a tape before it asks for another tape…
Andrew Hoole
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11
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4 answers

Insufficient free space: X extents needed, but only Y available

I'm trying to extend a LVM in a Vmware Workstation 12 Pro CentOS VM. Below are the steps I am following and where I stopped because don't know how to folow from there: Create the primary partition using fdisk command Get partition table info using…
ReynierPM
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9
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5 answers

How does a 32-bit machine support more than 4 GB of RAM?

I have always wondered about this and never totally understood how 32 bit machines are addressing more than 4 GB of RAM. I mean, there are no more address lines left, correct? I know even in our facility that we have Dell database servers with 8 GB…
Brettski
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8
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2 answers

Can I have 2Gbit over 1Gbit Nics

So this really baffles me. Apparently because 1Gbit can transmit data in both directions simultaneously it should be possible to get 2Gbit of data transfer on a single NIC (1Gbit flow seend and 1Gbit receive). People claim that because 1Gbit is…
ivenhov
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8
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10 answers

Where to purchase a server capable of 512GB of RAM?

Where can I purchase a single server capable of 512 GB, yes GB, of RAM? The most I've seen is 256 GB (32 DIMM x 8 GB per stick)
Timk
7
votes
3 answers

Can a 3ware 9500S-4LP controller use 3TB drives?

We have a Rackable Systems server used for backup storage. Recently we purchased a couple 3TB drives to expand the storage, but they are only showing a capacity of 746.52 GB as reported by 3ware's tw_cli utility and the 3ware card's BIOS. I have…
jimp
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5
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2 answers

btrfs increase raid capacity by replacing disks (and not adding disks!)

I'm very excited about the new features of btrfs and would like to start tesing it. Before I get started, I would like to ask if btrfs supports increasing raid capacity by replacing disks by bigger ones (and not adding additional disks). Example: A…
Chris
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4
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1 answer

Common back pressure strategies for services under sustained high load

I'm wondering what are the common backpressure strategies people use for their web services? Imagine your service operates under heavy load, and at some point the load reaches 120% of your capacity. How do you deal with this? The most sound…
sergey
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3 answers

Difference between FBWC capacities?

When buying a FBWC storage controller such as HP's P420, you can choose either a 512MB, 1G, or 2G capacity. What differences do these capacity sizes provide? Is there a metric I can use to choose between them? Is it related to an 'all-the-time'…
Nicholas
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1 answer

Capacity planning for an enterprise java application

If you had to do capacity planning and hardware sizing "BEFORE" you had a chance to actually code and test the application (typically while you are defining solution architecture), how would you do it? I know this can not be known accurately…
Nitin Gaur
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2 answers

How would I show a static "over capacity" page in IIS?

I'm launching a new site soon and I expect it to make it into mainstream media. At this point, I'm not sure our server will be able to handle all of the requests. Is there a way that I can detect the server running too slow so that I can just serve…
sebastiaan
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Is there a maximum 'anything' when running a high number of processes on Windows

I have a series of well optimised services written in house using .Net running on many 512GB RAM server (a mix of Xeons including E5-2697 V2 etc). Is there a maximum handle, process, thread count that would contribute to services becoming unable to…
WiseTechGlobal CTO
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ZFS iSCSI and free capacity in VMFS

I use ZFS in FreeNAS 8.0.4 and use iSCSI to provide a LUN to Vmware ESXi 5.0. I post it at http://forums.freenas.org/showthread.php?10990-Memory-utilization-and-performance-problem/page4, but I believe people here may have more expertise on…
Datnus
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Increasing a Linux partition once VM size increased in vSphere?

I have a Ubuntu 12.04 VM running on VMWares ESXi 5.1. The server (VM) itself has run out of space, the results of df -h are as follows: Filesystem Size Used Avail Use% Mounted on /dev/sda1 19G 17G 1.2G 94% / udev 490M …
dannymcc
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