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

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2
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1answer
15 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 ...
-2
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0answers
21 views

Windows 2012 iSCSI Storage Clustured SAN for Video Editing [on hold]

I just wanted to deploy a Central storage for video editing using windows 2012 server; Just an idea if i have server with 30TB raid storage available and i create a volume using iSCSI target server ...
0
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0answers
4 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
27 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
89 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
1answer
24 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
49 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. ...
0
votes
3answers
48 views

~50tb of storage in Azure presented as a single Windows File Share

I have googled, the closest thing I have found so far is another SF question here: Azure Storage limitations The Goal: Move approx 50TB of storage to the cloud, present that storage as a standard ...
0
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2answers
45 views

What is optimal sql server cluster storage solution?

I have been assigned a project where sql server is running on a single server with single raid 1 volume. This setup has worked fine until hardware failure resulted in about a day worth of downtime ...
1
vote
2answers
914 views

When reading SSD drive specs, what's the difference between MB/s and IOPS?

I'm trying to find a suitable SSD drive for my database server (postgres on debian 7 amd-64), and I find that for some SSD drives, while read speed is specified in MB/s, write speed is in IOPS. To ...
0
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0answers
5 views

Does WD My Cloud Android app cache photos and videos to the local device? [migrated]

The WD My Cloud Android app describes itself as "free up space on your mobile devices with direct photo and video uploads". If I have photos on my My Cloud, and I use the app to view them on my ...
2
votes
1answer
45 views

esxi passthrough storage adapter

I run ESXi 5.1.0 (HP version) on HP ProLiant ML310e G8 v2. There are 2 Storage Adapters: Smart Array P222 Dynamic Smart Array B120i Storage Adapters are visible in ESXi/Storage Adapters. Storage ...
1
vote
0answers
48 views

Best practices in connecting EMC VNX iSCSI storage [closed]

We have an EMC VNX5200 with 2 service processors, each having 4 iSCSI ports, 1 data mover (with 4 ports) and a control station, all of which is plugged into two stacked switches. What are the ...
1
vote
2answers
113 views

How to migrate a ZFS filesystem to use compression?

Question at the bottom. I have several ZFS file system I would like to use ZFS compression, but since enabling the compression will only affect new data written to the file system, I would like to ...
1
vote
0answers
45 views

10K SATA vs 10K SAS - SBS Server Upgrade [closed]

We are upgrading the storage on a SBS2011 server. It currently has a single 7,200RPM SATA drive (don't know the model). Small office with less than 10 users. Budget is low so the original plan was to ...
3
votes
1answer
45 views

Hyper V 2012 and SQL Cluster Live migration

I've been doing allot of searching and even asked around here at the office without a good answer. I would like to know, within Server 2012 R2 Hyper V, can you or can not do a storage migration of a ...
2
votes
1answer
29 views

Abstract physical drives to create a resizable raid array: is it possible?

I want to set up two hard drives with a portion of them set in raid1. I want that portion to be scalable too, as logical LVM volumes are. Is it possible to abstract physical volumes or to create an ...
1
vote
1answer
41 views

Access a share on a server using another servername

We've recently moved to a new office, and merged our network with a bigger one (Trust between our domains), and now we are using the storage box of the bigger network. This poses a problem for me: My ...
2
votes
1answer
67 views

SCSI disks capped at 40 MB/s

I have a batch of SCSI disks and a controller; the drives are HP 72,8GB 10k RPM Ultra320 SCSI (model number BD07296B44), the controller is an Adaptec AIC-7892A U160/m, the issue is that I can't get ...
3
votes
1answer
86 views

VSphere web-client shows incorrect datastore capacity

On the vsphere web client I have a strange problem with one of my datastores as it's displayed capacity is incorrect. Originaly it had 1TB of disk space. After I increased it's capacity on 1.4TB the ...
-1
votes
2answers
63 views

Parallel disk seek with JBOD

I'm looking to build a 80 TB file based storage system. Ideally, I'd like to do this with a large JBOD and one server with a lot of cores. My question is: Will JBOD containers (like Intel's) allow ...
1
vote
1answer
70 views

Unable to ping between ESXi host and Netapp storage on the same switch

I am unable to ping between ESXi host and Netapp controller that are both connected on the same switch and configured for private IP addresses. Yet I CAN ping between 2 Esxi hosts and between 2 ...
3
votes
1answer
41 views

FC-Multipath: Which path_selector performs best?

So I learned that since Red Hat 6 it is possible to choose between 3 algorithms for loadbalancing between different paths to my FC-SAN, the default dumb round-robin - and new - queue-length and ...
14
votes
2answers
845 views

Is running permanently in a VMWare snapshot bad for performance?

I understand that the VMWare KB frowns upon long running snapshots mainly due to two things (In my opinion) Taking tons of snapshots can fill up the data store. Snapshots are simply delta files. ...
0
votes
1answer
34 views

IBM Fiber Storage

I am asking this question on behalf of the company i work for, What the problem is that we have just setup a fiber storage system with an IBM Server and IBM Fiber Storage system, we brought the both ...
3
votes
1answer
197 views

Adding a local HDD to an ESXi host

I am trying to add a 4TB HDD to my ESXi server, but I can't find out how. I've tried following a few tutorials on the internet, which say to go to the configuration tab, storage, rescan the datastores ...
1
vote
3answers
122 views

Long running VMWare snapshots are bad… but what about VMDKs on a ZFS\LVM snapshot?

The VMWare KB and multiple blogs state that long running snapshots are bad for both performance reasons and integrity. They have valid points. Granted this is not with ESXi but rather ...
2
votes
1answer
50 views

Using a JBOD for redundant NFS

I have a Xyratex sp-2224 JBOD enclosure (dual controller) and a pair of Dell servers with SAS HBAs installed that I'm looking to utilize in a redundant NFS cluster. The hardware isn't what I'm ...
0
votes
0answers
51 views

Server 2012R2 DFS High Availability - with local storage?

Can I use clustering for high availability on two identical 2012R2 boxes that use LOCAL storage (not attached or SAN)? Local storage is super cheap and scalable, which is why the SAN has been ...
-1
votes
2answers
114 views

Would 6 SSD's in RAID 0 last longer than a single large SSD? [closed]

To my understanding, the main factor for SSD's to fail is constant reading/writing to the drive. I recently helped a friend setup RAID with 6 SSD's. Would this theoretically extend the lifespan of ...
0
votes
0answers
34 views

Invisible (!) data on NAS machine

I am running a Thecus N7510 NAS machine, with 4 HDD in a RAID 10 configuration and one more as a "hot stand by". This machine is used for a variety of purposes, excluding backup up until now. Lately ...
2
votes
1answer
49 views

VMware VMFS5 Local Storage LUN Sizing

We have a VM ESXi 5.x host using local storage (DAS). It has 2 relatively large Logical Drives in RAID10 (10 HDD x1TB each). So, 2 LUNs of 5TB each. We are considering creating just two ...
3
votes
2answers
84 views

HP StoreEasy 1630 Pool Expansion

We have a single HP StoreEasy 1630 with the following disk configuration: Pools RAID Drives Capacity Virtual_Disks Physical_Disks Size_Per_Disk A 1 2 450GB 1 ...
4
votes
2answers
123 views

SAS Expander backplane performance drops when more than 8 drives are active?

We are using an LSI 9211-8i raid controller (flashed in IT mode) in a PCI-e 2.0 x8 slot. It's connected to a supermicro SAS 836EL1 backplane with 1 SFF-8087 cable. We have 16 drives installed. When ...
3
votes
2answers
261 views

Hardware mods: kludging a conversion from U320 SCSI to SAS/SATA

I apologise if this isn't an appropriate question for this forum. I've an elderly server that works well and that I'd therefore prefer not to scrap entirely. But I would like to replace the current ...
2
votes
1answer
110 views

NetApp RAID DP - and disk space of parity drives

I've been reading: http://community.netapp.com/t5/Tech-OnTap-Articles/Back-to-Basics-RAID-DP/ta-p/86123 That basically describes RAID-DP as diagonal parity raid. But there's one thing that's ...
4
votes
2answers
105 views

Joining a NetApp to a domain on a Read Only Domain Controller

I have an isolated network, into which I've built a vfiler. The point of this network is that it's a non routed 'test' network. However, there's a need for LDAP/Kerberos and CIFS access to the ...
1
vote
1answer
77 views

HP ProLiant dl360 G4 with external backup

We are running a HP Proliant DL360 G4 with external HP Storageworks Ultrium 960 tape drive attached at the moment. Unfortunately the tape drive failed over the weekend and we are looking to upgrade ...
2
votes
1answer
79 views

How to find out if lvm mirror write is asynchronous or synchronous?

I am using redhat 5.8 with an lvm mirror, created with the following command: lvcreate -m1 --mirrorlog mirrored -n mirrorvol -L 10G myvg /dev/vdb /dev/vdc I would like to know, when I write, do I ...
1
vote
1answer
47 views

Management for Netapp filers and vFilers

How can I manage the system files on a filer or vFiler in Netapp? There are a couple of really important system files in every filer that it's really only feasible to manage by hand. While there are ...
2
votes
1answer
45 views

How can I test my DR on Netapp without stopping replication?

I have two Netapp filers running ONTAP 7-mode with some volumes on the main one replicated to the secondary one on another site. I need to regularly test my DR, but I can't break the replication ...
3
votes
1answer
55 views

Installing boot manager to a raw LVM physical volume

Is it possible to install some boot manager to disk with raw physical volume inside (i.e. no partition table)? I tried LILO and LVM volumes became inaccessible (due to LVM structures corruption). Boot ...
0
votes
1answer
50 views

Max Size of Disks Supported by Controller

I am interested in purchasing (second hand) a Dell Poweredge 2950 2nd Gen server. However, the specs say it has a max storage size of 4.5tb. I am wondering if this means just what is available to ...
-1
votes
2answers
52 views

How to expand memory on a virtual machine? [closed]

So I know that this question has been asked before, but this is a bit different and I believe it needs to be solved differently. This office has a machine on their local network that runs a host of ...
1
vote
2answers
194 views

iscsi with multiple lun, how linux to connect only selected lun

My 10.1.1.100 have 10 Targets. I'm initially connected to single Target by running iscsiadm --mode node --targetname iqn.2005-06.com.drobo:b800i.1112.id5 --portal 10.1.1.100:3260 --login It only ...
2
votes
1answer
99 views

Is RAID50 OK for a fileserver?

We have a new storage array consisting of 24 x 600GB 10K SAS disks arriving next week, and I'm trying to decide how best to carve up the available space for our 3-node VMware vSphere cluster which ...
2
votes
1answer
329 views

Force RAID 1+0 HP Smart Array to rebuild

I have a RAID10 with status "Ready for Rebuild", but how can I force the rebuild? # hpacucli ctrl all show config Smart Array E200 in Slot 0 (Embedded) (sn: PA6C90N9SW82IU) array A (SAS, ...
0
votes
3answers
74 views

ESX SAN overbooked, what happens if storage limit reached?

In ESX you can easily overbook the available storage with the Virtual Guests. What happens if a overbooked SAN reaches its capacity limit? Its not an actual problem i'm faced with, we just had the ...
0
votes
0answers
63 views

Local storage for Server 2012 file share under ESXi

I have an ESXi 5.5 server with two local disks, one is 300GB and the other is 2TB. The configuration is for a small organization that will have two Windows 2012 servers - one Domain Controller and the ...
1
vote
1answer
617 views

How to upgrade the firmware of HP SAS expander card without Smart Array controller or Proliant Server?

How can I update/upgrade/flash the firmware of an HP SAS expander card [468406-B21 a.k.a. 487738-001]? I used to do this using Windows and a HP P410 Smart Array controller, however that controller is ...