Primarily questions about disk storage, sometimes questions about application storage or cloud storage. Always questions about storing data.

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1
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2answers
407 views

Do I need to have 2 RAID arrays to utilize both controllers in Equallogic unit?

I'm trying to figure out how EQL works with multiple controllers. Dell sales people recommended having one RAID array on one EQL unit. But will this set up allow utilizing both controllers? Or will ...
3
votes
2answers
1k views

Create a raid 6 with 7 drives

I'm trying to create a raid 6 array on a VNX 5100 from EMC, however am unable to create one with 7 drives. We have 8 total, and I immediately carved one out for hot sparing, leaving me 7 data drives. ...
-5
votes
2answers
2k views

Does the number of files slow down the server? [closed]

Having numerous files will obviously slow down the OS; but how much this problem is serious? Consider that the files have been well distributed over multi-level folders. Does still the number of files ...
1
vote
1answer
598 views

Small fast network with Mac mini server and Promise Pegasus?

I have 7 Mac Pros and iMacs that need to be connected to the same storage. I'm doing non MPI-based numerical modeling so the transfer rates have to be fast but not infiniband fast. I'm considering a ...
-2
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2answers
50 views

Troubleshooting disk space allowance overuse

I regularly accrue charges for disk space allowance overuse. I'm in a shared hosting environment. I've gone through and deactivated logs and removed files, but seems like every month, I'm right back ...
0
votes
1answer
554 views

mixing single path and multipath SR's in a Xenserver pool

Has anyone attempted to run a single path iSCSI SR alongside a multipath iSCSI SR in a Xenserver 5.6 pool? We're migrating from an old SAN to a new one and I want the new one to use multipathing. ...
5
votes
7answers
2k views

setup lowcost image storage server with 24x SSD array to get high IOPS?

I want to build let's name it a lowcost Ra*san which would host for our social site the images (many millions) we have 5 sizes of every photo with 3 KB, 7 KB, 15 KB, 25 KB and 80 KB per Image. My ...
1
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2answers
4k views

IBM storage ds3400 Cant connect to management using fiber

i have a problem with a DS3400 IBM storage system we bought a few years back. when i try to manage the storage using its IBM storage management i cant find it using automatic detection even though its ...
3
votes
2answers
1k views

Linux Rhel5.6 : SCSI protocol version — where is it defined?

In our environment, we have several storages cabinets connected to RH Linux servers. Depending on the storage cabinet connected to the host, some LUNs are seen using SCSI protocol version 2 ...
0
votes
2answers
522 views

Seagate Momentus XT for Hyper-V [closed]

Has anyone tried these hybrid drives for virtualization? (More specifically Hyper-v + Raid or JBOD). I'm interested in how it performs as I'm running a few servers at home, and the disk I/O is killing ...
0
votes
1answer
512 views

Hard drives, how to calculate read and write speeds supported? [duplicate]

Possible Duplicate: dell 2T 7.2k nearline SAS 6Gbps- ingress/egress throughput I don't have access to machine/drive, but need to define specs to purchase one. What all things would it be ...
0
votes
3answers
1k views

dell 2T 7.2k nearline SAS 6Gbps- ingress/egress throughput

I would like to know, how to calculate sustained read and write speeds supported. I don't have access to machine/drive, but need to define specs to purchase one. What all things would it be ...
4
votes
4answers
2k views

Is there a performance advantage to isolating database logs and data on different volumes (same RAID array) across a SAN?

On my old server, I separated them on to different RAID arrays to improve performance. Using a SAN is new to me, so I'm not sure of the optimal configuration. SAN: 48 drives. 10K 600GB SAS. RAID 50. ...
1
vote
3answers
266 views

Dell Poweredge Disk Issue

System will boot with no errors, but will only get so far into Windows (safe mode, normal) before it locks up (but still accepts mouse input). Tried a live disk to boot from, and I can copy just ...
1
vote
2answers
2k views

Using CommVault to backup a NAS without NDMP

We have CommVault Simpana 9.0.0 build 84 currently installed and configured on our backup server that is equipped with both a magnetic array and a tape library. I am trying to find a way to backup one ...
1
vote
2answers
2k views

Optmizing tape media usage for CommVault Simpana 9

My employer has CommVault Simpana 9.0.0 build 84 currently installed and configured on our backup server that is equipped with both a magnetic array and a tape library. It may be a newbie question, ...
4
votes
2answers
3k views

Server and network setup for a small private school

I help a local private school with a lot of their tech needs. So far, it's been on the order of repairing/installing office computers and helping manage the office network. But now the administrator ...
2
votes
1answer
326 views

Change Amazon S3 storage class on A LOT of files

We are using Amazon S3 and a great deal of our files have the STANDARD storage class. We want to change this to REDUCED_REDUNDANCY class to save the extra money. However, is has been hard to find a ...
1
vote
1answer
166 views

HP StorageWorks RAID 50: Volume size on creation is not precise enough

I've got a HP MSA2312i with 24 Hard drives. I created a RAID 50 virtual disk. That makes me a total of 11 TB of available space. I want to create a 500GB volume (0.5 TB). When I want to create a ...
1
vote
1answer
38 views

What's the command-line equivalent of creating a new Partition through MS Windows Server?

For example, When I connect LUNs to a given server, I go into Windows Management, right click on a new disk, and click New Partition. Given Windows CMD prompt, how can I accomplish the same thing ...
1
vote
1answer
690 views

FSRM unable to create new reports after removing old LUN

We are running a 3 node failover cluster file service based on server 2008 R2 and iSCSI Storage Arrays. We have recently migrated all storage from one cluster file service on one LUN to a new file ...
-1
votes
1answer
193 views

virtualization platform: Ubuntu + KVM/Xen

performance and feature set offered by the latest Ubuntu 11.04? while it works best as virtual workstation with direct attached storage, what is the tool-stack offered for server virtualization ...
1
vote
1answer
450 views

Utility of ThunderBolt-based Storage Systems for Servers? [closed]

This is admittedly a terribly newbie question, and I'm not a professional sysadmin. I have however recently been considering a OS X Server based network setup for a small lab (OS X Server because I'd ...
0
votes
2answers
140 views

NAS storage problem

Im running a small program on Buffalo NAS, which is being accessed by several users through network share. Recently the program started to crash quite often and kicks out the user while they work on ...
1
vote
1answer
1k views

HP Smart Array p410i rebuild percentage not correctly working

I have a HP Poliant with a p410i and when I rebuild my raid 5 with a quick remove and insert to test the rebuild percentage goes up to 10% and then jumps to 92%. I continues up to 100% and the Array ...
14
votes
2answers
8k views

Are RDX removable disks a good replacement for LTO tape?

Over a period of three weeks, I experienced six complete failures of LTO-1 and LTO-2 tape drives at client sites. Some had failed mechanisms. Others lost the ability to write reliably. These were HP ...
2
votes
2answers
1k views

store high amount of photos (150 million) and make available for web [closed]

For a actual project I must setup a high-available storage server who can store and publish (http) 150 million photos in 7 sizes means total 1050 million files. For every photo we need total 200 KB ...
2
votes
1answer
51 views

Is it possible to import file system owned by a single user and export as multiple virtual volumes, owned by multiple users?

Is it possible to import a file system owned by a single user, (e.g. mounted via NFS) and export it again as multiple virtual volumes, owned by multiple users, where each volume is a folder on the ...
1
vote
2answers
120 views

At what workload is a parallel (network) file system required?

Any hard numbers, or rules-of-thumgs, for what workload (e.g. in terms of simultaneously active users running average HPC center jobs) on a computer cluster, that would make a parallel network shared ...
1
vote
1answer
203 views

gpt partition for raid 6 that was 4.5TB, will i have any issues under server 2008 64bit r2?

has anyone had any issues with using one large gpt partition of 5TB on a raid 6 setup with a 3ware raid controller. i am using the partition as a basic file sharing backup repository, nothing fancy. ...
2
votes
1answer
301 views

iSCSI target rebooting causes initiators to reboot as well

I'm running a couple of iSCSI Targets with OCFS2. I had to reboot my iSCSI Target (the physical iSCSI Target) due to some hardware changes and it caused all the initiators to reboot. I want to prevent ...
1
vote
1answer
118 views

Hyper-V Development Server - best 4 drive configuration?

We're building a development Hyper-V server that will be shared among 4-6 .Net developers. We'll be running mostly Win2k8R2 VMs with services including MSSQL, SharePoint, TFS, continuous integration, ...
1
vote
4answers
709 views

OSX Lion Server + XSan + Direct-Attached Storage

So my company is looking to switch to a DAS San storage system for our internal fileshare. I'm wondering if there are any great tutorials detailing how to set this up and what kind of equipment I'll ...
10
votes
1answer
4k views

Alternatives to Dell's mirrored SD card module for booting a small OS from flash?

Dell offers an add-on hardware card for some of their servers that provides a poor man's RAID1 between two SD cards (one card gets all the reads until it dies, writes are mirrored) for booting a ...
6
votes
1answer
213 views

HP P9500 block level data integrity checking

Does the HP P9500 do any sort of block level data integrity checking on reads? If so, I'm looking for actual documentation that it does indeed do such a thing.
1
vote
5answers
372 views

Pool storage on multiple ubuntu Servers?

Say I've got.. 5 servers, each server has a partition with 50GB's of storage. Is it possible for me to combine these 5 partitions and then mount them as one on a 6th server?
1
vote
1answer
221 views

SSD Write Performance and Relaibility [closed]

SSD do give a really fast Random Read Performance over conventional Hard Disks typical data transfer size is 4k or 8k.Although the Sequential Reads performance is not that huge, data transfer size of ...
-1
votes
2answers
135 views

Solid State Devices [closed]

Why is solid state devices not a good option to store data for a very dynamic (frequent updates) oracle database? Although for read intensive databases ssd does give a huge performance improvement.
-3
votes
1answer
697 views

Fiber Channel vs TCP-IP vs SAS. Which has better efficiency and why? [closed]

Three Major host connectivity protocols Fiber ChennelSASTCP-IP Which of these is the appropriate storage for 1. RDBMS Server like Oracle 2. File Sharing like Email or media files What is the unique ...
2
votes
2answers
196 views

Reset/reuse linux device letters?

Is there a way to tell the OS that /dev/sdd is really gone when I disconnect it and that it can reuse that letter? I have RAIDs hooked up through fibre channel. I have it set up so that fstab will ...
0
votes
3answers
124 views

Network-Attached Storage Advice

The company I work for utilizes an old, clunky Window SBS as a file server and Domain Controller. They're looking to reorganize their storage infrastructure to deal with data demands. I'm thinking a ...
2
votes
3answers
11k views

iSCSI Transfer Rate Using Standard Gigabit Networking

We just purchased a dell storage server with (12) 7200 RPM SATA drives running RAID 10 and (4) gigabit network interface cards. Additionally it has a PERC H700 controller card with 512MB of on-board ...
2
votes
1answer
1k views

Linux software raid GUI monitor for GNOME

I prefer mdadm to administrate my raid and I currently use a script to see the raid status. Running a (php)script to see the status is not exactly the most smooth experience for me so I have been ...
-3
votes
6answers
382 views

Is there any cheap way to create a server (or servers) with a petabyte of storage? [closed]

Cheap in terms of an individual funding it themselves, for research. This seems like a nearly impossible task, given the size of current drives.
4
votes
3answers
208 views

Is there any reason to store my data in /var/?

Right now I have a small server handling a few things—DNS, HTTP serving, email, etc—and am storing all my data in /data/, a directory I create on all servers I administrate. The reason I like to ...
1
vote
1answer
206 views

Solaris: Good Book for metastat?

Does anyone know any good book(s) on learning the ins and outs of Solaris's SDS (Solaris Disk Suite) and its corresponding commands (metastat, metadb, meta*)? I'm looking to invest some time into ...
1
vote
4answers
255 views

I know I have more free space

I'm trying to track down where all my hard disk space went. I have 1TB total space and, according to my system, 433GB used. However, I know I have more as I don't have any large files or folders that ...
0
votes
2answers
347 views

Is it possible to set up multiple named instances running on a SQl Server 2008 R2 Active/Passive Cluster?

I'm trying to plan a SQL Server 2008 R2 2 node Active/Passive failover cluster. Is it possible to set up multiple named instances running on the cluster? e.g. sqlcluster sqlcluster\demo ...
0
votes
2answers
418 views

synchronize files between remote sftp location and local

I am facing a quite familiar problem but have no clear idea on how to handle it. I'm a backend developer and i write my applications using Zend Studio. My employer requires me to work on a remote ...
0
votes
1answer
398 views

AWS EC2 EBS Microinstance Storage and Djangostack

I'm moving my person webpage to an Amazon EC2 free (for now) micro instance, and want to clarify some things. Since the micro instance does not have any "local storage", when i am installing apache, ...