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

learn more… | top users | synonyms

-2
votes
0answers
14 views

SAS for offline storage [on hold]

Noob question here. I happened upon a few cheap drives that are SCSI and SAS in a lot of used computer equipment. I've been ripping all of my dvd movies to ISO so I can watch them from any tv in my ...
0
votes
1answer
29 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
29 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 ...
6
votes
2answers
297 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
26 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
18 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 ...
-1
votes
0answers
27 views

HP MSA 2040 drive not detecting

We are running the MSA 2040 with 1.2TB 10k SAS drives with no issues. But was just trying to get the 300GB 15K SAS drive on it. But it doesn't detect. According to the specification of this enclousre ...
-6
votes
1answer
61 views

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

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
19 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
37 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
4 views

SSD's or HDD's in a LANcache? [migrated]

I am building a LANcache for a lanparty that I'm organizing. We have about 80 visitors (pretty small LAN), but our uplink is limited to 100mb/s due to reasons and it's constantly saturated with game ...
0
votes
0answers
8 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
41 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
711 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
65 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
votes
1answer
77 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
70 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
925 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
3answers
194 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
62 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
66 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
47 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
50 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
34 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
34 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 ...
-7
votes
2answers
161 views

Server destroying and burning my Hard Drives [closed]

Before I start, let me inform you that I have been working as an IT Manager for large international companies for my whole life, and I have received masters degree from IT technology. I therefore ...
0
votes
1answer
27 views

Storage tiering and SLA models

I've started looking at switching storage charging models. Historically - it's been purely per-gig, in a big shared pool. But I'm looking at extending the model, and looking at tiering storage ...
0
votes
0answers
21 views

VHD to physical disk conversion failed

We have had a happy HyperV running with several VMs until motherboard crashed. On another MB we had to install a new OS, of course HyperV does not see VMs. Tried to use VHD2Disk using a blank ...
-1
votes
1answer
111 views

Monitoring a cluster storage on Microsoft Windows Server 2012 R2 HyperV via SNMP

As a part of my task of monitoring our whole server environment it is planned to check the cluster storage (cluster shared volume, csv) of our HyperV cluster with Check_MK/Nagios3. Exactly needed is ...
3
votes
3answers
37 views

Are storage pools basically another term for JBOD?

I am reading up on Storage for Windows Server 2012 R2 and I am trying to understand the purpose of Storage Pools. The way they make it sound is that you can create one big expandable ever growing ...
1
vote
1answer
75 views

Convert RAID from Mechanical Disks to SSD?

Any issues with converting a Mechanical Disk RAID to SSD by replacing the drives one-by-one? I couldn't find anyone online who has done this, so let's make this the place to post about it. If you ...
-1
votes
1answer
31 views

How to change volume mount

I have two volumes in my EC2 ubuntu instance: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvdb 202:16 0 40G 0 disk /mnt xvda1 202:1 0 400G 0 disk / I want the 400GB one to be the main ...
2
votes
1answer
171 views

VMware ESXi <> Synology NFS Share (Physical Switch Redundancy)

This is my storage network: ESXi Host(Dual 10gb NICs) >> 2xNetgear xs712T >> Synology RS10613xs+ (Dual 10gb NICs) ESXi vmnic1 >> NG Switch 1 >> Syn NIC 1 ESXi vmnic2 >> NG Switch 2 >> Syn NIC 2 ...
0
votes
1answer
59 views

Best span size for 12 x 2TB drives in RAID10

We have just taken delivery of a new JBOD chassis, with 14 x 2TB NL-SAS drives - 2 have already been earmarked for enclosure spares, so we have 12 drives available. I have several options for setting ...
0
votes
0answers
34 views

Btrfs data single mode behaviour when on of devices fail

I want store non critical data on more HDDs (one 2 TB and two 500 GB devices) using Btrfs filesystem with distributed metadata but single data. As I have said, data will not be critical, so if one ...
1
vote
0answers
44 views

Best scenario for global data replication and distribution between multiple servers [closed]

I need to store and serve about 30TB of data (for now) and the number will increase pretty fast. I also have to keep costs low, so I will have servers with no RAID at all. Instead data should be ...
2
votes
2answers
91 views

Performance for ZVOLs presented over iSCSI?

I have the following setup for testing: HP Microserver N36L (Dual-core low-power Athlon64) 8GB ECC RAM 2-port Intel Gigabit NIC 4x3TB WD Green (5400 RPM?) 1 sata disk for OS image (FreeBSD 10.1) ...
2
votes
1answer
115 views

XenServer 6.2: reattach SR but all disks have no description

I have recently reinstalled XenServer on my server. All the VHD files were stored on my NAS via NFS, so I re-added the NFS SR after reinstallation. However, all my VMs seem to be missing, and the ...
-1
votes
1answer
34 views

One SAN connecting to Hyper-V and VMware [closed]

my customer currently has two hypervisor types in place - using VMware for Linux systems and Hyper-V for Windows. They currently have different storage infra for each of these platforms which cost ...
1
vote
1answer
163 views

IBM DS3400 - how replace a good disk

I've to replace all my disks with other bigger ones. I read in the manual: Never hot-swap a drive when its associated green activity LED is flashing. Hot-swap a drive only when its associated amber ...
3
votes
1answer
30 views

Undo adding disks to a RAID-Z Configuration

I've started running out of space on one of my data pool and decided to expand it by adding some extra disks. Below is what it looked like before extending: NAME STATE ...
0
votes
2answers
59 views

Extendable RAID storage system

I am currently building a storage unit for our office. It is rather low budget at the moment, but it needs to be extendable. basically we have a huge database that will grow over the next few months ...
0
votes
1answer
483 views

OpenStack Cinder: iSCSI login negotiation failure after reboot

I have a Cinder storage and controller node running on the same CentOS 7 box as Nova compute. Everything worked fine, until I rebooted. Now my instances can't mount volumes and I get the errors below. ...
0
votes
0answers
89 views

VDS fails to write boot code on a disk during clean operation

We have windows 2008 enterprise server and one of the logical disks D: is missing. On the device manager , whenever we open the window, it asks to choose for MBr or GPT, but choosing neither would ...
2
votes
1answer
54 views

Exchange 2010 Whitespace after Archive move

We have multiple Archive Mailbox databases. I have had to create a new one with 500GB of Data space for the archives and 150GB for the logging files. The problem I am having is that even after ...
0
votes
0answers
12 views

On-Site Backups: JBOD on Existing Array, or 2nd Array?

We're reconfiguring our on-site backups (using Veeam if it makes any difference) and I have a decision to make. I can either purchase an entire new disk array and use that, or I can purchase a JBOD ...
0
votes
1answer
38 views

Move space from one volume to other

I have one setup where / has 50G space. I want to increase space for /. [root@testsyst ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_testsyst-lv_root ...
2
votes
3answers
239 views

What are the differences between consumer grade SSDs and the much more expensive enterprise SSDs?

I am in need of a terabyte or so of storage space for Lucene indices on a testing server. I'm having a hard time differentiating between disks like the Samsung 840 evo for about $450 vs SSDs with ...
2
votes
2answers
60 views

NetApp filer - lots of 'low water mark' CPs triggering on idle filer

I've 4 NetApp 2240-4 filer heads. They're single chassis 'cluster in a box' so two separate units. Over the last few days, at about the same time - all of them started logging a LOT of Low water ...
2
votes
2answers
205 views

HP ProLiant ML350 G6 RAID 1 disk compatibility

We are running an HP ProLiant ML350 with a RAID 1 set up on two identical 300GB 6G SAS 10K rpm SFF (2.5-inch) Dual Port Enterprise HDDs and a third acting as a "hot spare" - HP part # HPQ-507127-S21. ...