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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1answer
449 views

Shared storage for VMs without dedicated storage server

On a legacy project I've got 4 physical machines (servers, PM's) where each server has access to the SAN and fixed-space by it's own two devices (via device-mapper multipath). The local disks of the ...
0
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1answer
131 views

In a MySQL database shared by many clients, how do you calculate the storage consumed by a single client and its data

So basically the same table is shared by many client with a foreign key that identifies which data belongs to whom Thanks
3
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1answer
203 views

How to lay out high capacity storage

I'm building high capacity storage for video. It is currently at 20TB mark and keeps growing. Currently, I have 12-bay enclosure filled with 2TB drives and configured in RAID-6. I'm considering to buy ...
2
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2answers
958 views

How to set up an Infiniband SRP Target?

I want to set up a server as a SCSI Target. How good are the open source implementations? What is the tutorial one? How is performance and reliability? How dependent is the OS? How much is ...
4
votes
5answers
1k views

ZFS on Linux based systems

Is there anyone who has more experience with ZFS under Linux based systems ? I saw ZFS fuse library, but I don't know it;s worth a test or not. Stable, usable ? Maybe as a storage ? Or only ...
0
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4answers
192 views

One huge drive (network share) from many computers, with folder priority redundancy

Not sure if this exists, but I have a huge amount of data to store (about 5-50mb files) and as it is now, I have 5 computers, each with raid 5 providing about 6TB hard drive each. This is causing some ...
1
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4answers
381 views

Please recommend an 8 port SATA card (No RAID) [closed]

I'm increasing storage on a system and have run out of SATA ports. Can anyone recommend a 8 port SATA card (No RAID) which supports up to 2TB hard drives. Thank you.
0
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1answer
134 views

Upgrading from Windows Server 2003 to Windows Server 2008 - Spanned Dynamic Disk

I have a spanned volume on 5 dynamic disks in my current Windows Server 2003. The volume is used to store data only. All the disks are connected via an external SCSI enclosure. I would like to ...
0
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2answers
149 views

Power Cycle Cisco MDS 9506

Would someone walk me through the steps to power cycle a Cisco MDS 9506 FC switch? It would help if you would provide a link to relevant documentation for this procedure. I must perform a power ...
0
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1answer
226 views

Server Mainboard and Storage System

Does anybody know how the following storage devices will be supported by Ubuntu, Debian or Linux in generall?? SATA-Controller: AMD SP5100 SAS-Controller: LSI 1068E Because I will buy the ...
0
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1answer
42 views

Storage subsystem borking after server restart (all on a Parallel SCSI bus)

I have a server (with a SCSI HBA) connected to two Promise VTrak M310p RAID enclosure on the same bus. Everything is working fine until I have to restart my server. Once restarted, the server can no ...
0
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1answer
592 views

Install SAS/SATA backplane in Dell PowerVault 220S

Is the backplane of a Dell PowerVault 220S svc tag 3sdpcb1 (14 drive, 80 pin hot swap scsi) upgradeable to a SAS/SATA backplane & controller card replacement? The unit already seems to be quite ...
0
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3answers
381 views

best filesystem for an aws s3 like service

I need to build a fault tolerant, highly available key/value storage (no posix, only same functionaluty as S3) using cheap existing hardware. The storage should be able to handle several billions of ...
0
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1answer
2k views

Setup options for an HP Storageworks D2600 Array

I have a shiny, new D2600 storage array with 6 x 2TB disks fitted, together with the licence pack that allows me to configure this all as a RAID 6 array. A few questions for you: 1) The array has two ...
0
votes
2answers
592 views

P2V successful with local drives but fails with SAN storage

I have server with local drives and about 500GB LUN on some SAN storage. We recently attempted to P2V this server on to ESX but it would keep failing at 1% if the SAN storage was included but it would ...
5
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2answers
1k views

LVM: resize2fs not resizing

I'm having a weird issue with resize2fs. I've performed all the commands and they all have been successful, however, my filesystem is the same size as it was before: [oracle@server~]$ df -h /backup ...
0
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3answers
4k views

btrfs vs. ZFS on a Ubuntu file server

I have a server which is running Ubuntu (Server Edition), and its main job is serving files through FTP (vsftpd) and AFP (netatalk). My /srv directory is starting to fill up, and I need to add more ...
1
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3answers
2k views

SAS Expanders vs Direct Attached (SAS)?

I have a storage unit with 2 backplanes. One backplane holds 24 disks, one backplane holds 12 disks. Each backplane is independently connected to a SFF-8087 port (4 channel/12Gbit) to the raid card. ...
0
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3answers
448 views

SSD drives with SAS Interface

Why there aren't any SSD with SAS interface? Are there any technological limitations or it is simply because manufacturers haven't produced one yet?
0
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1answer
350 views

Finding the bottleneck in Nexenta?

I built a Nexentastor server (free edition) and I am having serious disk performance issues. This same box had FreeNAS on it before and it was much much faster. Here are the specs: Dual core E6600 ...
5
votes
7answers
5k views

Do you lose everything when you have a hard disk failure in a multi-hard disk LVM that does NOT use RAID?

I'm debating about using LVM for a media/file server because I would like to combine multiple physical hard disks into one volume. I do not wish to use any RAID in my LVM so my question is: If one ...
2
votes
1answer
147 views

Use the exact same type of disk in a RAID, or different manufacturer/batches

What rule do you follow when buying disks for RAID arrays: to buy the disk as similar as possible? to buy the disks from different manufacturers? Some people chose the same type for performance ...
-1
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2answers
122 views

Hard Disk Speed for Virt Laptop [closed]

If I want to run a few dev VMs on a laptop, how fast do my drives realistically need to be? I do not expect lightning fast performance, but the last time I tried this on a Lenovo Thinkpad T400, ...
0
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1answer
408 views

HP DL370 G6 expansion

we are running a HP DL370 server with 6 x 300 gb disks on RAID 5. Due to a Windows update causing our server to fail recently, we couldn't access the data. I now want to separate the data from the OS ...
0
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3answers
2k views

Failover clustering: tempdb on SAN?

We are considering clustering our SQL Server 2008 EE instances. The storage is on SAN. Can we put tempdb data/log files on SAN? What are the pros and cons on this solution? For optimal performance, ...
1
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0answers
101 views

Windows Storage Server 2008 & Windows 7 sharing acting unpredictably

Configuration: Windows Server 2008 r2 ADUC, Windows Storage Server 2008, Windows 7 Professional x86 & x64 Scenario: We've been using Windows Storage Server on a NAS device for the last year or ...
5
votes
4answers
431 views

19" Rackmountable fast storage arrays

I'm in need of some fast (15+ GB/s write) and somewhat large (50 TB+) storage subsystem with a standard storage interface. I'd prefer something other than Fibre Channel, which admittedly appears to ...
26
votes
10answers
21k views

Cheapest way to connect 20-24 Sata II HDDs in a budget storage server? [closed]

I need to assemble a high density storage server for as cheap as possible. It's been a while for me and the last systems I integrated didn't even have Sata yet... During my Research I of course ...
2
votes
1answer
110 views

Is it Good to place Windows Server paging files on seperate fast storage?

How much of an impact does the performance of the storage system hosting the paging files of windows machines (I guess both physical or virtual instances like VMWare / KVM / Xen / Whatever)?
1
vote
3answers
806 views

How do I present a very large disk to a windows VM?

Equipment: - EVA 4400 storage system - ESXi 4.1 hosts managed via Virtual Centre - Windows Server 2K3 R2 64bit Enterprise Edition VMs Goal: - Have a very large volume that is used for on-disk ...
0
votes
1answer
498 views

SAN connected through SAS with SATA disk

let's have P2000 G3 with SAS Dual Controller and DL120 G6 with HP SCO3e SAS HBA cards. 1) I know it's bit dumb question, but just to be sure. The array will be filled by SATA disks. Will be the SAS ...
0
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1answer
119 views

DS2401 Mcdata switch offline

I've two DS2401 Mcdata switches. One is pinging fine and accessible while the other is not.switch is not responding to ping or http requests. I'm remotely managing this switch. Is there a way I can ...
3
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2answers
410 views

what is tiered storage?

what is tiered storage? I do not know enough to ask this question better. Searched SF posts but found nothing that could be comprehended.
1
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3answers
2k views

can ZFS NAS serve storage multiple hosts?

is it possible to serve blocks of storage to multiple hosts using iSCSI protocol? each block is reserved to one writer (host) is it only limited by available NIC ports? update: shared storage ...
2
votes
1answer
470 views

many partitions on a single filegroup?¿ does it make sense?

I'm designing a datawarehouse solution and I'm a newbie in disk configuration issues, let me explain you. Our storage is spread over 6 storage enlosures having each of them 5 raid-1 disk arrays, and ...
1
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2answers
948 views

how many disks can saturate a 6GSAS controller ? :LSI 9260-8i

This is my build: LSI 9260-8i: MAX read throughput of 2,875 MB/s, write performance of 1,800 MB/s 24x SAS 10K RPM drives 2x 100GB Dell SSDR (SATA) drives for ZIL and L2ARC All plugged to same ...
3
votes
2answers
127 views

what are Domains?

When we deal with Cisco / Brocade Fabric switches ,we come across Domains . What exactly is the purpose of a domain in a switch and how many Domains can we 've ? Appreciate if some one can give ...
1
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3answers
5k views

which Linux iSCSI target support SCSI 3 Persistant reservations?

looking for Linux iSCSI target software that support SCSI-3 persistent reservations? isci enterprise target tgt: scsi-target-utils open-iscsi
0
votes
1answer
153 views

2 JBOD enclosures 1 RAID controller vs 2 RAID enclosures

In term of scalability of performance and price, what would be better for a small business with around 20 users. I am targeting around 45TB of storage via SAS. Here are my options: Buy 2 JBOD ...
0
votes
1answer
2k views

Hotplug vs. non-hot plug disks

I have more or less hardware question related to hotplug or non-hotplug hdd. I plan to get HP P2000 G3 FC/iSCSI storage system, and I was going to order the disks. One costs 300eur.. So my question ...
1
vote
3answers
2k views

SAN/NAS with high availability?

I have two servers that I plan to use for storage. Each of them has a few SATA disks directly attached. I want the storage to be available even if one of the storage servers is down (preferably the ...
0
votes
1answer
226 views

Barracuda Message Archiver Database Storage Format

I need access to a Barracuda Message Archiver database so that I can issue queries against it. The default web-based email search mechanism is not powerful enough to handle complex nested and/or type ...
0
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1answer
310 views

Design question - storage+xenserver

my small design is based on 2xXenServer DL120 G6 with 4x1Gbe ports and 1xMSA P2000 G3 with 4x1Gbe Ethernet ports (it has another controller as well but will not be used now). 5 VM machines running ...
2
votes
1answer
336 views

DFSR - What happens when one server gets maxed out?

What happens when one server in a DFSR pool maxes out its disk space? I am at the very beginning of my research in DFS/R and this struck me. I plan on implementing this on one server with RAID1 ...
7
votes
6answers
1k views

solution to store 10TB /Month

I'm working at a small TV company. They generates 11TB of video files per month. What can I do?. I just need ordinary SATA disks, in RAID. What solution should I buy? (They are using a lot of ...
1
vote
1answer
144 views

Asus WL-520GC + external HDD via Ethernet

Has anyone experience of using such combination? Exactly with the same model (or from same model line). How does it works? How hard is to set up all that? What difficulties? I use this router a ...
0
votes
1answer
984 views

unable to login to CISCO management IP

I 'm inable to login to my fabric CISCO switch ( MDS 9506) through management IP It's giving an error- when logging it from Device manager "10.20.XX.XX" timed out Busy Network, No Route, or snmpd ...
38
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8answers
8k views

Is it safe to use consumer MLC SSDs in a server?

We (and by we I mean Jeff) are looking into the possibility of using Consumer MLC SSD disks in our backup data center. We want to try to keep costs down and usable space up - so the Intel X25-E's ...
4
votes
2answers
1k views

How to QoS NFS?

I have the following NFS-based storage setup: Computes nodes are Linux. The NFS servers are Solaris. A not-so-important user runs a bunch of read intensive jobs on a subset of the compute nodes. As ...
1
vote
2answers
1k views

Need help finding a SAS HBA controller for an IBM LTO 4 Tape Drive

I've got an older IBM x3200 M2 Server (MT: 4368) and I recently acquired a used internal IBM LTO 4 tape drive (FRU: 45E1125). The back of the tape drive requires an Internal SAS 29 pin connector ...