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

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1answer
23 views

Do we need to mount or not ? for Oracle ASM

i am comparing the differences between installing a db with its files on a traditional filesystem and on oracle asm with traditional filesystem, it seems like there is no concern for disk persistent ...
0
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1answer
21 views

coreos mount cifs or sshfs or any other networked file system

For development I want to mount a file share from my windows dev box inside my CoreOS VM, so I can then mount that volume inside a container. CoreOS doesn't appear to support doing this, and comes ...
-2
votes
1answer
42 views

Challenges of dealing with large disks/partitions

Currently doing research on creating a new file server. Server will be Linux based (CentOS 7) and will need to have around 8 TB of available space. Samba will be used to share the files. I am trying ...
1
vote
2answers
91 views

Optimize Linux file system for reading ~500M small files

We're seeing performance problems on a file system that contains ~500 M files that are relatively small (typically tens of kb) and ~150 K directories. Files access is predominantly reads and writes ...
-1
votes
1answer
22 views

Expanding Storage by adding a second server? [closed]

I don't know if this is possible "out of the box" but here goes: I have a dedicated Linux server with a LAMP kind of installation. It is being used as a cloud storage. The server is slowly getting ...
2
votes
1answer
16 views

NetApp - Snapshot Full

I am seeing a bunch of Snapshot Full warning events being generated recently from various volumes on our filers: A Warning event at 22 Jun 10:03 Alaskan Daylight Time on Snapshot ...
0
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1answer
35 views

How to list all files of a partition on linux?

I am running out of disk on my rhel box. I am trying to find all files in /dev/sda2. Do we have a command which can give all files (ideally, with size) in filesystem /dev/sda2? /dev/sda2 31297508 ...
0
votes
1answer
54 views

RAID1: approx performance difference of 3 active vs. 2 + spare?

My question concerns only Linux software RAID ("md"). I'm going to set up a RAID1 array with three devices. I need to choose between using the third disk as a spare or as an active member of the ...
4
votes
1answer
38 views

7-Mode snapmirror status post link change

In a Netapp with a snapmirror relationship to another Netapp in 7-mode, what are my options of checking replication performance through Data Ontap? We upgraded the link and want to know how snapmirror ...
0
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1answer
51 views

SATA Hard disk on RAID controller does not show on windows, and healthy on BIOS

We have a WIN2012 R2 server (3 x SSD 1T each, 1 x SATA 2TB), each drive is being put on it's own RAID (reads 4 "Adaptec Array SCSI Disk Device) on device manager in windows "disk drives" section ...
2
votes
1answer
18 views

Apache Spark infrastructure - combining compute and storage nodes

I have an infrastructure question around Apache Spark, which I'm looking at rolling out in a greenfield project with (at most) approximately 4 TB of data used for modelling at any given time. ...
1
vote
3answers
28 views

How can I enable caching on the RAID card or Hard Disk(s)

I've got a HP ML350 G5 server running 6 disks as two RAID-5 configurations. This server has been notifying me of an empty battery on the E200i card. This seems to result in disabled cache: read and ...
1
vote
2answers
93 views

How to fix my broken raid10 array

I have a RAID 10 consisting of 4x3TB drives. It had become degraded (sdd had dropped off). I thought I had fixed it and it was rebuilding, but now (I think) sde appears to be causing problems. ...
-2
votes
0answers
13 views

Storage Capacity Requirements for Virtualization Project [duplicate]

I am starting a new virtualization project at my internship this summer and I need help pegging the storage requirements for the new physical host. While I understand the principle of sharing ...
1
vote
2answers
40 views

Converting from RAID 1 to RAID 0

We have 2 x 600GB SAS 15K drives configured in RAID 1 through a PERC H710 RAID controller in a PowerEdge R620. Question. Can we convert this to RAID 0 without having need for a OS reinstall? If so, ...
0
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0answers
25 views

How to disable fibre channel LUNs entirely while doing an OS install?

SL 6.5 (aka RHEL 6.5) using a Qlogic adapter in a Dell R610. The module that is loaded is qla2xxx but also scsi_transport_fc. I have 2 SAS disks in RAID 1 for the OS and several FC LUNs for data ...
1
vote
0answers
12 views

S3 + Cloudflare vs S3 + 2 Web Server + Cloudflate

Currently, I run two websites and each site own it own big server. Currently, all of those two sites has roughly 300GB of images. Its grow rate is 15GB of images per month. I know that eventually, one ...
2
votes
0answers
49 views

Windows Server Manager stuck on 'Display will be complete when the server inventory has finished…'

I cannot access Storage Pools in Server Manager because it seems that it's stuck on 'Display will be complete when the server inventory has finished...'. The little blue bar up top keeps running, so ...
0
votes
1answer
15 views

How to show degraded pool under SCVMM?

Does SCVMM show degraded pool information? When a disk, which is part of a storage pool, goes down, therefore changing the pool status, where and how can I see this information under SCVMM? Server ...
2
votes
0answers
35 views

why are zfs on linux transfer rtates reported incorrectly after expanding array?

I have upgraded the drives in a 4 drive Raidz array in a NAS server and the array has auto expanded to the new size. In testing transfer rates from the NAS server now I observe that when performing ...
4
votes
1answer
51 views

Network Filesystem fails during high I/O Speeds

I am a user on a cluster using NFS for our data storage needs. Recently, I have been running a pipeline which has very high I/O during some operations. The program we think is causing the problem is ...
2
votes
2answers
54 views

error: no space left on device when saving file (but there is space)

I am implementing in ruby however when I want to save my work I get "Opening output file: no space left on device, /afs/edu/usr7/ael/p\ rivate/RUBY/inc.rb" When I checked if I got any space using ...
-4
votes
1answer
67 views

Consumer vs Enterprise SSD [closed]

I'm deciding what SSD's to use in our infrastructure. Enterprise drives are obviously more reliable but storage items are expendable and will fail anyway. So considering that we have proper RAID, ...
0
votes
0answers
45 views

xenserver host lost all storage connections

I have inherited a xenserver setup running 6.0. There is a storage pool set up with two host servers (a bad idea to start with I gather), 8 vms and several SRs. I recently had one of the hosts fail ...
0
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0answers
21 views

HyperV-2012R2 Storage Migration cannot migrate entire VM in FCM

I am new to HyperV and currently moving our setup from esix4.1 to 2012R2 HyperV. We were testing out the storage migration and it is pretty cool but I could not figure this out: - If the VM is not in ...
1
vote
2answers
83 views

New EC2 server, C: drive is full. What can I do?

I signed up for a trial of Amazon EC2 and created a new instance with all the defaults. Upon first login the 30GB C: Drive only had 150 megs free. I went ahead and created a new volume and have a D ...
-4
votes
1answer
57 views

Email storage server - NAS or SAN? [closed]

I'm looking for storage server that could store ~34TB (34 SSD disks of 1TB) of emails. I'm thinking about two NAS QNAP storage servers, but I'm not sure if it's OK to use NAS instead of SAN. Any help? ...
0
votes
1answer
69 views

Does the amount of disks in a RAID10 matter for a Microsoft SQL server in regards of the block size?

We are planning to deploy a Microsoft SQL Server and to store the databases on a RAID10 (RAID1+0) block-level-storage. Does it matter how many drives altogether I put into the array for optimum ...
0
votes
3answers
50 views

Same device, mount different partitions in different servers

I have two Linux servers which have connection to the same disk device, on a fiber channel connection (I didn't configure that, it was already there). I can see on both servers the disk showing up as ...
7
votes
2answers
322 views

Storage issues: Prolonging the life of a legacy Compaq ML370

I have an original ML370, from before there even were generations (2000). The storage system is comprised of a Smart Array 431 controller, 2 9.1 Gb Ultra3 SCSI (COMPAQ BD009635C3), and 4 146.8 Gb ...
2
votes
2answers
58 views

Will msa2324sa work with MSA60?

We have an HP msa2324sa (HP MSA 2000 g2 sas) and need to expand storage. Will the MSA60 work with the msa2324sa? Will the MSA60 support 6TB drives? We're looking at WD Red drives. Why do ...
1
vote
1answer
27 views

Storage volume is not avaliable from second node AIX 6.1 OS

My environment comprised AIX 6.1 OS installed over six physical servers and connected via brocade switch to DS8000 SAN storage. I am aiming to build HACMP cluster on two physical machines in a way ...
-6
votes
1answer
95 views

HP's $1,000 RAID Controller is outclassed by on-board raid? [closed]

HP's $1,000 Smart Array P822 controller is outclassed by an on-board raid controller. I'm having a hell of a time trying to figure this one out. My problem is that performance on the HP controller is ...
0
votes
2answers
28 views

during snapshot merging… are deleted transactions ignored?

If i take a snapshot in vmware/vbox for example and soon after i delete a 5GB file.. the snapshot delta file will grow +5GB with the deleted files content to allow it to be recovered by restoring the ...
0
votes
1answer
287 views

QNAP TS-859U+ RAID5 volume unmounted, e2fsck_64 hangs

We got this QNAP TS-859U+ with firmware version 3.8.1 Build 20121205 at our datacenter. It has Intel(R) Atom(TM) CPU D525 @ 1.80GHz processor and 1GB RAM, 8 of 3TB (Seagate ST33000651AS CC44) drives ...
0
votes
0answers
13 views

DPM 2012R2 - Disk to Tape

Is it possible to bypass the Disk to Disk to Tape in Microsoft DPM 2012 R2? To go from live data straight to tape without staging storage? (I'm pretty sure DPM 2010 could)
0
votes
2answers
96 views

KVM - Sharing A Physical Hard Drive Between VMs

Installed Ubuntu 14.04 and will be ditching VirtualBox to go to KVM per some recommendations. With that in mind, I have a full physical SATA disk that I would like to share between a few VMs. Is ...
9
votes
3answers
860 views

Why are Large Form Factor (LFF) disks still fairly prevelant?

Small Form Factor (SFF) / 2.5" disks seem to have become more popular than LFF disks now due to them being preferable over LFF disks in many scenarios (lower power consumption, higher density, etc). ...
-2
votes
1answer
210 views

How to secure OwnCloud? [closed]

I am not literate when it comes to servers, but I like the idea of having my own cloud storage for privacy reasons. OwnCloud is targeting (at least a little bit) the "DIY-home-user" so it seemed to be ...
1
vote
1answer
24 views

SAS direct dual link connection to an embedded LSI Fusion-MPT controller

This is a hardware question. I have a dual-link SAS hard drive and a Intel S5000XVNSAS motherboard without the drive cage option. Recently, I bought a direct dual-link cable in amazon. But when ...
-1
votes
1answer
179 views

Ubuntu Server 14.04 TLS plus Hardware RAID

I have just completed hadrware installation of my new RAID server which will run with Ubuntu Server OS. I have installed Ubuntu Server OS and everything run seemingly without problems. However, I ...
0
votes
2answers
343 views

RAID1 very slow with LSI card and 2x Samsung EVO 850 drives

not sure if I'm checking it correctly, but here is what I have. Desktop, LSI 9260-8i card, see config below. 2x 500Gb Samsung 850 EVO drives. I also have Samsung 830 drive attached to motherboard ...
2
votes
3answers
1k views

What are the pros & cons of 4xSSD(512Gig) in a RAID10 vs. 2xSSD(1Tb) no RAID?

Lots of read and write operations that my current setup of 4xSAS15k drives in RAID10 is having made me think of a new fast storage. My server is busy with a demanding database, lots of pages, php ...
11
votes
4answers
384 views

Understanding NVMe storage and hardware requirements

I'm a bit confused about the recent developments in PCIe-based storage, particularly as it relates to the NVMe specification and its hardware compatibility. While I've worked extensively with SSDs in ...
3
votes
2answers
110 views

Max SAS throughput of a disk stack?

I've been trying to figure out something. I have a stack of SAS shelves (attached to a NetApp if that's relevant). Each devices within the shelf is 6G SAS. According to the vendor, the sustained ...
1
vote
0answers
139 views

Amazon RDS Instance slowly losing free diskspace

A while back the server running my instance had 20GB of EBS storage. It then started getting disk storage errors, so I increased it to 40GB. Then again, storage missing errors so I increased again to ...
1
vote
1answer
159 views

How can I query the NetAPP ONTAP API without using the SDK?

I have a bunch of NetApp filers, which I've been accessing via ssh with public-private key pairs. I would like to extend what I'm doing - we're repeatedly hitting limitations where e.g. ssh is ...
1
vote
2answers
60 views

Do you need to plan for Disk failure when using Storage Pools on Azure?

I'm creating a new Storage Pool and Virtual Disk on a Windows Server 2012 R2 machine on Azure. Can I just pick the Simple layout which doesn't account for a single disk failure because none of my ...
1
vote
1answer
78 views

Does the LSI 9211-8i add any data structures of its own when used in pure HBA (JBOD) mode?

I'm looking at adding some disks to one of my systems, for which I need to add an offboard HBA. Looking around, I came across the LSI MegaRAID SAS 9211-8i (LSI part number LSI00194) which looks quite ...
0
votes
0answers
57 views

BladeCenter S SATA disk compatibility

We have a BladeCenter S with a 6 bay storage array. A SAS Connectivity module (39Y9192) is installed as well as a SAS expansion card (39Y9187) in each blade (HS21). The SAS connectivity module is ...