Storage is a catch-all term that encompasses the areas of centralized storage (questions about SAN, NAS), local storage (questions about internal hard drives, DAS), and even sometimes questions about applications that use storage and cloud storage. Because storage has such a wide definition, it ...
-1
votes
1answer
55 views
LVM Storage server [closed]
I have question regarding a storage server, I have VM need to be connected to SAN storage, in order to connect to SAN storage I'm in a scenario which I need to have LVM (Logical Volume Server) between ...
5
votes
2answers
94 views
Does adding more drives to a RAID 10 Array increase performance?
I'd like to know if I were to add additional drives to an existing Raid 10 if this would increase the speed of the entire array?
-3
votes
1answer
43 views
The two devices which facilitate storage over a network [closed]
I have been ask for specifically 'THE TWO' devices which facilitate storage over a network, powerful in addressing, failures and redundancy.
Could anyone figure out which devices these are? It seems ...
0
votes
1answer
24 views
IBM DS300 SAN, Need to expand partitions on LUN
I have a IBM DS300 SAN, and I have setup one LUN with 2.7 TB. I have this LUN setup with 2 partitions, one 130GB partition, and one 1.27TB partition. I have an additional 1.3TB free space. I would ...
1
vote
2answers
38 views
HP Proliant ML150 G3 physical drive size limit
Apologies if this is a rather silly question, but I'm not very savvy when it comes to interpreting server documentation. The documentation ...
0
votes
2answers
53 views
Managing a networked drive
We're having issues with people moving files both intentionally and accidentally on a networked drive. What would be a good way to establish accountability without bogging down the storage server? Is ...
0
votes
0answers
46 views
Online Server Backup Solutions [closed]
We have been running a dedicated server in the US for a while acting as a remote backup. We are now looking for a cheaper alternative and was wondering if anyone knew of any services which provide ...
-5
votes
0answers
38 views
cheap storage solution [closed]
we already have a storage solution for the mission critical applications based on NetApp. We would like a second solution for the other IT systems, which don't require that level of performance. Which ...
2
votes
3answers
65 views
Storage cluster for inexperienced admin
I'm a relatively inexperienced server admin who primarily works with Windows and a little bit of Linux. I'm the only admin of a small organization.
I'm looking for a way to have a high-availability ...
22
votes
1answer
1k views
How should I set up my Fibre Channel (FC) network?
How do FC switches work, and how should I configure mine?
24
votes
3answers
410 views
Tuning iSCSI storage
This is a Canonical Question about iSCSI we can use as a reference.
iSCSI is a protocol that puts SCSI commands as payload into TCP network packets. As such, it is subject to a different set of ...
0
votes
0answers
14 views
MySQL/Memory Storage/init-file runs incorrectly on CentOS 5.7
I have a database with some Memory tables which stores loaded data from Innodb tables. And configuration files are:
/etc/my.cnf content:
...............
max_heap_table_size=512M
...
0
votes
2answers
37 views
hp sb40c and hp bl460c storage
I have an HP ProLiant BL460c partnered with an HP SB40c blade server. The storage controller for the BL460c is HP Smart Array E200 while the SB40c's controller is P400. In my configuration, the ...
3
votes
0answers
190 views
Hard disk lifespan [closed]
Possible Duplicate:
Does an unplugged hard drive used for data archival deteriorate?
in your honest opinion how long can a sealed hard drive last on the shelf unused? I mean, fully write ...
3
votes
2answers
232 views
CentOS 6 doing lots more IO than CentOS 5
I'm benchmarking an application on two identical servers, one is Centos 5.8 and the other is Centos 6.2. My application is running much slower (50% or less) on the Centos 6.2 machine.
In attempting ...
0
votes
7answers
183 views
Full direct bi-directional data swap between two storage volumes?
How would I go about doing a 100% data swap between two storage devices of identical size and keep both data partitions without using a third device as a temporary buffer?
In other words, I have two ...
4
votes
2answers
77 views
Dell MD1000 and an x4 SAS connector throughput / layout
I'm trying to get my head around how a multi lane x4 SAS connector works in a DAS system such as the Dell MD1000. I understand that each lane is 3Gbps, and that multiple hard drives can share a lane. ...
1
vote
1answer
140 views
HP ProLiant DL380 G4 RAID conversion?
Proliant DL380-G4 with the onboard SmartArray 6i controller.
Raid 1+0 set consisting of 2x 72 G and 2x 300 G disks (the bigger disks got added later).
Effective capacity about 140 GB and, of course, ...
0
votes
1answer
48 views
Is it possible to run gitolite on a FreeNAS server?
We make extensive use of gitolite, both for code management and to host private SparkleShare repositories. I'm looking at building a FreeNAS storage machine, and got to thinking that it runs bsd, has ...
0
votes
2answers
107 views
Shared storage between VMs
I am new to server administration and virtualization, and I have a couple of questions that I hope to get some help for.
I have two server boxes that are of similar set up. The differences between ...
2
votes
3answers
48 views
HBA directly to DAE bypassing SPE
Is it possible to setup a server with a host-based adapter (HBA) directly to a Dell/EMC CX3-40f disk-array enclosure (DAE) which only has fiber connections, taking the storage-processor out of the ...
2
votes
3answers
85 views
Possible to per file encrypt cloud storage?
With the many cloud storage providers that there now exist, would it be possible to add a layer of encryption before the files are saved?
It would be possible to make an encrypted partition in a ...
1
vote
1answer
34 views
Windows Storage Server 2008 Single Instance Storage
Should I be enabling this feature on a file server?
What type of performance hit is involved with this?
I ask as its not something I can easily turn off once on.
0
votes
2answers
49 views
Growing stock photo & video website - storage query
I have a growing stock photo website. It's currently hosted on a pretty basic dedicated server from WebFusion and I now need to expand, both storage and performance, and to lose their rubbish support ...
1
vote
1answer
70 views
What could cause a sudden extreme increase in io load on my postgres database server?
I have a postgres server running since years and the load have been more or less constant (load average around 0.5-5). Yesterday it reached an average of 110!
It is a virtual server running Debian ...
0
votes
0answers
38 views
Combined random and sequential I/O for a database
We need to size a storage that will host the datadirs of many running slave instances of MySQL. The storage shall be connected to a single server that will run all the slave instances.
On the ...
3
votes
2answers
108 views
6 Disk Raid 1+0
I have a P400i raid controller, with 6 disks, working in a RAID 1+0. This is what it looks like:
Mirror Group 0:
physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 72 GB, OK)
...
0
votes
2answers
48 views
Large photo sharing service. Where to start [closed]
I'm sorry if this post is too vague but I don't even know what topics to start looking at. I need a server that has the ability to share large amounts of data with potentially very high traffic, and ...
3
votes
1answer
78 views
Shared Block Device File System (iSCSI)
I wanted some advice on a file system to use on across 5-10 servers that have a shared block device (iSCSI), GlusterFS and LusterFS seem to be it, but they dont say anything about shared block device ...
1
vote
1answer
91 views
What are Linux SCSI command timeouts and is the default suited for software raid?
My understanding of SCSI timeouts is that any read, write, flush and other commands have a limited time to complete. If exceeded, the command is aborted and an error is reported to the upper layer. ...
-1
votes
1answer
44 views
Shared Storage [closed]
I just tried to create a shared disk with fiber cable on a storage (rorke 22tb with 2 lun. One of them will go to one workstation(WIN7), the other one wil lgo to another workstation(WIN7)).
However I ...
0
votes
0answers
17 views
NDB storage engine mysql Configuration for Maximum READS and WRITES to mysql
How can I find the Maximum limits for the number of READS and WRITES to mysql?
I have found the following using the "show global status" mysql command:
ndb_api_read_row_count to find the maximum ...
1
vote
3answers
162 views
How do you take a physical drive offline using HP P410i RAID card
How do you take a physical drive offline using HP P410i RAID card ?
Specifically in a RAID1 array I want to use hpacucli tool to take a physical drive offline then online to test if RAID1 array ...
1
vote
3answers
163 views
Throughput = BS * IOPS?
I've seen in many places that throughput = bs * iops should be true.
For example writing at 128k block size to a SAS disk that can support 190 IOPS should give a throughput of ~23 MBps -
23.75(MBs) = ...
1
vote
1answer
147 views
Is current SATA 6 gb/s equipment simply unreliable?
I have a 45-disk array of Seagate Barracuda 3 TB ST3000DM001 (yes these are desktop drives I'm aware of that) in a Supermicro sc847 JBOD, connected via LSI 9285. I have found a solution for the ...
2
votes
2answers
128 views
How to store 250TB of data and develop a backup/recovery plan? [closed]
I'm really new to this topic, so big apology for stupid questions.
I have a school project and I want to know how to store 250TB of data with life-cycle for 18 months. It means every record is ...
1
vote
3answers
94 views
Does Hyper-V support GPT disks on the host?
Are there any issues with Hyper-V (on Server 2008 r2) if the host is formatted as GPT? Someone out there has tried this...
2
votes
2answers
121 views
Fast, reliable data transfers from/to China
We are a small company and we will need to transfer rather large amounts of data (10GB+ each time) between Europe and China in the near future.
As many may have experienced, Internet connections to ...
10
votes
1answer
212 views
Configuration for a two machine ESXi cluster using VSA to present local storage to VMs
I'm designing a little vSphere 5 cluster for one of our remote sites. We have some IBM x3650s that have 6x 300GB 10K RPM drives in them, along with dual quad core CPUs and 24GB RAM. Because we use HP ...
0
votes
1answer
47 views
Distributed storage system with offline/cold disks
I'm looking for a storage system for replacing a custom built backup system. I have looked briefly at MogileFS and OpenStack Object Storage but I still don't know if any of these suits my needs since ...
3
votes
2answers
68 views
HP SAS hdd in non-HP server
I wonder if I could re-use some HP SAS drive in a non-HP server.
Description:
146GB 2.5" Serial Attached SCSI (SAS) SFF
3G Single Port Hot-Plug 10K HDD
Option Part# 431958-B21
Spare Part# 432320-001
...
1
vote
2answers
211 views
HP P212 hangs on Initializing
I'm in trouble...
Server: HP Microserver N36L
Storage: HP P212/256 with BBWC
Drives: 4 WD 2 Tb
While expanding the RAID 5 array from 3 to 4 drives, the server rebooted itself. Expansion was at 76%.
...
-1
votes
2answers
137 views
iSCSI basic concepts
I have just detected that in one of my hosts (this is a virtual machine run by a cloud provider) there is a process eating up some bandwidth:
NetHogs version 0.6.0
PID USER PROGRAM ...
0
votes
3answers
135 views
large RAID 10 vs small RAID1
The machine will store and serve millions of small files (<15Kb each), and all those files require a total storage space of 400G
Considering the exact same SATA hard drives maker and models, on the ...
0
votes
2answers
77 views
Strategy to optimize raid cache
HP SmartArray have "Accelerator Ratio: XX% Read / YY% Write", that configures how much cache ram dedicated for read, and how much for write.
Is there way to find best proportion on alive server in ...
3
votes
1answer
149 views
Which is the fastest way to move 1Petabyte from one storage to a new one?
First of all, thanks for reading, and sorry for asking something related to my job. I understand that this is something that I should solve by myself but as you will see its something a bit difficult.
...
6
votes
3answers
205 views
Seeking distributed, fault-tolerant, networked block storage
I'm looking for a distributed, fault-tolerant network storage system which exposes block devices (not filesystems) on the clients.
A client's block device should write simultaneously to several ...
4
votes
3answers
144 views
Converting our budget-strapped dev environment to ESXi - how to maximize availability on the cheap
We've already run through the process of virtualizing our production servers and now we want to do the same with our dev environment. However, our provider took care of all of the ESX host and cluster ...
0
votes
2answers
51 views
Iozone: sensible settings for a server with lots of RAM
I have just acquired a server with:
2x quadcore Xeons
48G ECC RAM
5x 160GB SSDs on an LSI 9260-8i
Before deploying the target platform, I'd like to collect as much benchmark data as possible, ...
0
votes
4answers
85 views
How do I permanently delete a USB storage drive? [closed]
Possible Duplicate:
Zeroing SSD drives
I have an external flash drive that I want to get rid off. I've deleted & formatted it from within Windows but I want to make sure no one can get ...
