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

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2
votes
1answer
162 views

Issue deleting files from a NetApp Windows Share

At work we have a NetApp Windows Share setup. I browse with Windows Explorer to a folder which contained thousands of text files. I then select multiple files at the same time and delete the files. ...
1
vote
1answer
46 views

Prevent NexentaStor analytics page from timing out

NexentaStor has a handy profiling interface that serves as a front to certain dtrace scripts. It's handy for monitoring realtime IOPS or I/O throughput of the appliance. Unfortunately, this interface ...
3
votes
1answer
59 views

How do I properly build a volume group and logical volume for 500GB in AIX?

I've been fiddling around with AIX 5.3.7 for hours today, and I was able to build a VG and LV, but I'm having difficulty using all the space in the LUN I carved out (500GB). I'm not sure if i'm ...
1
vote
1answer
142 views

Storage Spaces adding a mirrored drive later

I am planning to use Storage Spaces in Windows Server 2012 R2. I want to initially set up my sever with 1 hard drive in the storage pool. Is it possible later to add a second drive that mirrors the ...
2
votes
1answer
1k views

XenServer 6.1 Reports Wrong Storage Amount in XenCenter

We're using XenServer 6.1 Advanced on three blades in a pool. I'm in the process of moving storage from an old SAN to a new SAN using Storage XenMotion. So far, so good! I discovered though, on a LUN ...
1
vote
2answers
596 views

OMSA Add new disk and convert current single disk to RAID1

We got our new server last week, and unfortunately one of the two disks could not be delivered. Now we've got the second disk, and I want to install it and join it with the current disk to create a ...
0
votes
0answers
95 views

Data deduplication works vice versa

I have enabled data deduplication on one of my SSD's volumes and then run Start-DedupJob cmdlet with optimizastion parameter on this volume (Windows Server 2012). After dedup completed i check ...
1
vote
1answer
25 views

external mSAS expansion

I got two servers. One with a Intel RS2MB044 and one with an Adaptec ASR-51245, both got an external mSAS connector. I need to connect these tho servers together, basically to share the file system ...
2
votes
0answers
98 views

Shrinking a volume and extending another in dynamic disk

I have a test environment where I converted a disk to dynamic, shrunk a volume, and then expanded another all on the same disk. The result is that disk management in Windows Server 2008 R2 shows two ...
2
votes
1answer
148 views

Rack Storage - Backplane with 20 SATA connectors or backplane with 5 Mini SAS connectors?

I am comparing two rackmount server chassis (Norco RPC-4220 and Norco RPC-4020, FWIW), which are identical except for the backplane connectors. One has 20 SATA connectors and the other has 5 Mini SAS ...
3
votes
1answer
65 views

LFF in HP DL360p, how and is it a good idea?

I need a new server with 10 Tb storage and was looking at a DL360p with a D2600. It would do the trick, but it´s quite expensive and I´m looking for alernatives. 4 x 4 Tb would be enough, both for ...
3
votes
4answers
584 views

Suitability of DL380p-Gen8 + D2700 for SQL 2012 Standard Edition

A question for those who know about HP server performance and SQL... I am trying to spec a suitable server that has the following requirements: Run SQL 2012 Standard Edition (I cannot get approval ...
2
votes
1answer
1k views

How often should I defrag ZFS pools?

I ZFS scrub once a month which takes ~24 hours for the 72TB. For what I can find about how often I should scrub is: very busy pools, once per week not so busy pools, once per month or run a scrub, ...
1
vote
0answers
456 views

windows2012 failover cluster + storage. Considerations

We plan to build a failover storage with Windows2012r2. There will be 2 or 3 physical machines with 2 virtual machines on each server. One virtual machine building a failover, second one being storage ...
1
vote
1answer
60 views

Secure Method for RAID Device Permissions for Network Storage

I manage a smallish network that supports a dozen or so employees. We have about 8 TB of data that lives on several NAS devices. I built a 20 TB RAID file server (with a XFS single partition) recently ...
-1
votes
2answers
183 views

High density disk bay rack chassis - why such a big difference in price?

We're looking for a chassis with 45-60 bays for SAS/SATA disks and we found some 60-bay enclosures at ~ $11000 (see here and here for example - there are others as well). However we found this one ...
0
votes
5answers
1k views

Windows Server 2012 Hyper-V Failover Cluster + Active/Active HA storage solution

I have a question. I need to build active/active HA storage architecture, but I don't know how achieve this without expensive third party software. I have two Hyper-V hosts, each with iSCSI storage. I ...
1
vote
1answer
36 views

Backup slowness after changing the SAN switch

We have a netbackup environment Recently we changed the connectivity of two of our sql servers(cluster servers) from one SAN switch(MDS 9509) to another (MDS 9513) followed by which we are ...
1
vote
4answers
81 views

Need to make a storage that keeps growing in size [closed]

First, due to security reasons and others I wont be able to make use of S3, or other similar solution. I have a a storage server in which I have a 1TB had disk. I have a Mysql server running in it. ...
0
votes
0answers
74 views

Storage of large number of files for a web application

There's an old discussion whether and application should store its files in a database or in the filesystem. Both have their pros and cons. I want to know if there's any specific system for ...
1
vote
1answer
380 views

ESXi: Storage Adapter Paths - Active/Standby to Active/Active

We have a couple of servers acting as VM hosts (ESXi v5.1) and they are connected to a Dell MD3220 SAS Array (2 cables each, split across 2 controllers). We've just noticed that multipath wasn't ...
3
votes
2answers
52 views

hba for software raid

In a software raid environment, is HBA failure the same as a hardware RAID controller failure? Do you still have to find the same model HBA to put into a different server in order for the drives to ...
0
votes
1answer
90 views

Unmount volume or halt Linux on disk IO error

Is there a way to dismount a volume (with open files on it) or cause kernel panic if IO error occurs on underlying disk? OS is Linux. This is needed to prevent data corruption in case of storage ...
0
votes
3answers
426 views

What are the benefits of having local disks on hypervisor nodes running VMs off a SAN?

When an hypervisor like XenServer or vSphere can be run on diskless nodes (eg. by booting from flash cards or from the network) and VM storage is handled via a SAN, is there any good use for local ...
0
votes
1answer
46 views

Grid storage for large files on multiple external machines

I have several dedicated servers with unused space on them. 16GB+ RAM, some have SSD, other HDD. All have minimum 100Mbps connection. OS is Debian 7 64bit. There is no LAN connection between machines ...
0
votes
0answers
59 views

windows storage server 2012 web administration

I needed to build a raid server in house for development. Being in MSDN we chose windows storage server 2012. We set up a storage pool and exercised fails and then re-built the server. I bumped into ...
48
votes
8answers
2k views

What are the advantages of tape drives?

IBM still develop and sell tape drives today. The capacity of them seems to be on a par with today's hard drives, but the search time and transfer rate are both significantly lower than that of hard ...
1
vote
1answer
89 views

Sharing information between nodes in Beowulf Cluster

I am setting up a beowulf cluster and I've been reading that it might be necessary to make the home directory of the cluster users shared between them (assuming this users are local to each machine). ...
2
votes
1answer
681 views

MacBooks are destroying SSDs

I'm opening this topic to find the cause of our SSD failure rate of +50%. We work with Mac (13" Macbook Pro & 13" Macbook Air), with installations of both Mac OSX Mountain Lion and Ubuntu. 90% of ...
1
vote
4answers
2k views

Creating bootable Fedora USB with persistent storage

I am attempting to burn the full Fedora 19 x86_64 DVD iso to a USB drive and have a separate partition on it for a kickstart file / other media that will be installed in the kickstart process. With ...
1
vote
2answers
73 views

RAIDs with a lot of spindles - how to safely put to use the “wasted” space

I have a fairly large number of RAID arrays (server controllers as well as midrange SAN storage) that all suffer from the same problem: barely enough spindles to keep the peak I/O performance, and ...
0
votes
2answers
355 views

Cannot join CIFS server to a active directory domain

We have a VNX5700 in our environment , it had two datamovers(one as primary and the other secondary). Recently we added a third datamover to the array and configured it as an active DM , so we will ...
0
votes
1answer
242 views

Solaris iSCSI read speeds increase when we start writing

Here's one I haven't seen before. We have an IBM Storwize V3700 storage array, 24 TB, RAID 5 connected to a Solaris 10 file server via an iSCSI link over Gigabit Ethernet (no MPIO at present). We ...
1
vote
2answers
290 views

SAN newbie: What kind of fiber cables do I need to connect to the front end ports on my EMC CX300

I have an old CX300 I'm messing with and I cant determine what kind of HBA\fiber cables I need to connect a server to the front end ports on the DPE2. The hardware reference doesn't give me any ...
2
votes
4answers
108 views

SAN newbie: Using a server like an ISCSI gateway for a purely FC SAN device

I am very new to SANs and have inherited an old EMC CX300 to play with. The CX300 is purely FC, but I'd like to experiment with ISCSI as well without having to purchase an expensive ISCSI gateway ...
1
vote
0answers
455 views

Access iomega StorCenter ix4-200d dump utility from SSH

My employer is in the process of returning a broken HDD to Lenovo/iomega. Unfortunately, before we can send it in, they require us to do a complete dump of the system's current state. Normally, I ...
1
vote
2answers
171 views

Is there a way to fake “slow” storage for testing?

I need to test my system with varying degrees of storage latency. Is there a software solution (for Windows) that would allow me to "fake slow" storage for testing purposes? I'm basically looking ...
0
votes
2answers
1k views

XenServer Shared Local Stage

I am new user of XenServer 6.2. I have multiple servers connected to Pool/Cluster. Each server has 4 HDD with sw raid10. I would like to make local storage shared because of need quick migration. ...
2
votes
1answer
1k views

Database (MySQL) and SSD lifetime - “lot” of writes to DB

In company where I work we started using SSD for our internal 3 GB MySQL database Difference in perfomance is HUGE, which is great. What I am worried about is lifetime of SSD Writes to DB are ...
0
votes
1answer
2k views

PowerVault MD3000 Password Reset Console Password

I need to reset the password on a Dell PowerVault MD3000. I have the necessary password reset cable and am able to get to the point where I am prompted for the "password from Dell Technical Support" ...
0
votes
1answer
245 views

LUN storage disk in 2 servers, can't see the files

I have one LUN disk connected over FC with linux server ( with centos) and esxi server with VM in Centos. (Two machines work in different LAN's.) In both machines i see this disk. In VM i created the ...
0
votes
1answer
56 views

Improving Hard Drive controllers and Software RAID [closed]

I believe the biggest pro of hardware RAID is that, providing your RAID controller is battery backed, you can enable write-back cache. This can also be achieved similarly through software RAID with ...
-2
votes
1answer
53 views

What tool/application (free or not) should I use to generate and write lots (TBs) of data, fast [closed]

I am testing a storage appliance and need to write TeraBytes of data to it. Using fio or dd takes days to write that much amount of data. Are there any (free or not-free) tools/applications, that I ...
4
votes
3answers
252 views

Store multiple versions of large binary file with minimal data duplication (preferably Linux)

I need to store multiple versions of a ~ 150 GB binary file (qcow2) on Linux servers with local storage, and was hoping there is some solution that involves just keeping diffs that can be merged as ...
0
votes
2answers
1k views

HP MSA2000, how detect faulty disks?

I have an HP MSA2012fc, it happened a few times that my large vdisk (6x 1TB raid 5) get offline, seems some disks are faulty, the event log only shows 2 of the drives had "bad blocks" and some disk ...
0
votes
1answer
95 views

Understanding swiftstack storage

I just wanted to make sure I understand swift FS properly. Is it possible to run a live VM operating system image on Swift like you can on a mounted SAN/NAS/Local storage? Or is it just for operations ...
1
vote
2answers
56 views

Storage for HP server (sbs2011)

I currently have HP ML350 G6 with 2x300 GB raid disks. Server main purpose is: - Exchange server - Office network (25 users) - File storage Now one problem is that one department has a need of ...
3
votes
3answers
130 views

How to connect SATA disks to copy large amounts of data from them to HP server running CentOS 6

We have an HP Proliant DL320e running CentOS 6. We will get SATA hard disks with data in the formats NTFS, FAT, HFS and HFS+ from which we would like to copy the files to the server (read-only), ...
3
votes
1answer
125 views

Poor NFS Performance Using Multiple Disks

I have a server system running Ubuntu 12.10 with 12 disks attached. I am sharing all of these disks on my 10 gigabit network using NFSv4. However, I am getting generally poor performance over NFS ...
1
vote
0answers
86 views

Partition block size different from device's and stacked LVM volumes ones

I have a pair of HP ML350 G6 servers with LSI MegaRAID 9266-4i+CacheVault driving Supermicro CSE836E16 enclosures via SAS bracket, filled with WD RE 3TB SATA drives. On these are configured a RAID10 ...