Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

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Hello, so my 4 drive hardware backplane or RAID card is experiencing a failure, two ports are malfunctioning which caused the RAID to go in degraded state and cause a passthrough disk to fail.  SeaTools didn't find anything wrong with the drive, so I narrowed it down to either the RAID card, the cables, or the backplane, so yeah, rather than spend a lot of time with trial and error, I thought it might be worthwhile to replace all 3 components and try a different setup.

My existing Hyper-V setup involves two RAID arrays on separate cards, a RAID-5 (Areca ARC-1210) and a RAID-1 (Areca ARC-1200).  Both arrays are using Seagate Constellation drives.  The hypervisor boot drive is a standalone disk.  The RAID-1 is used for boot VHDs and RAID-5 used for Data VHDs.  So what I am looking at is replacing my current Areca ARC-1210 with an ARC-1220 which would get me 8 ports.  This would be enough to setup two RAID-5 arrays on the card and then I could stripe them in Windows Disk Management for RAID50.  I already have the six hard drives needed for this.

Let me be clear this is not a production environment, this is just a home lab.  Are there any pitfalls to look out for using RAID-50 with VHDs besides losing two drives on one array?  I don't have enough slots in the case to do RAID-60 and RAID-10 would leave me short on disk space.
Migrating Your Company's PCs
Migrating Your Company's PCs

To keep pace with competitors, businesses must keep employees productive, and that means providing them with the latest technology. This document provides the tips and tricks you need to help you migrate an outdated PC fleet to new desktops, laptops, and tablets.

We had a switch issue yesterday and since then, two hosts are unable to connect to our dell equalogics'. Six hosts are connected over iscsi with Dynamic Discovery with no problem. The other two hosts cannot connect to Dynamic or Static LUN's

I have rebooted the host, attempted rescans of HBA.

any thoughts. i have verified all CHAP credentials and everything are set correctly. the switch was replaced with the same exact switch configuration.
Hi Everyone,
                        i have 2 drives online on my tsm:

tsm: VWARCKDSTSM01>q drive

Library Name     Drive Name       Device Type     On-Line
------------     ------------     -----------     -------------------
LIBTSM           DRIVE1           LTO             Yes
LIBTSM           DRIVE2           LTO             Yes

but when i check the path status, i got this:

tsm: VWARCKDSTSM01>q path

Source Name     Source Type     Destination     Destination     On-Line
                                Name            Type
-----------     -----------     -----------     -----------     ----------
VWARCKDSTS-     SERVER          LIBTSM          LIBRARY         Yes
VWARCKDSTS-     SERVER          DRIVE1          DRIVE           No
VWARCKDSTS-     SERVER          DRIVE2          DRIVE           No

so i tried to bring them back online:

tsm: VWARCKDSTSM01>update path vwarckdstsm01 drive1 srctype=server desttype=drive library=libtsm device=mt9.0.0.0 online=yes

and this is the error message i get:

ANR8444E UPDATE PATH: Library LIBTSM is currently unavailable.
ANS8001I Return code 15.

Please any idea? i need to run a restore ASAP.

Thanks in advance,

I have an SD card that I need to get the pictures off of.  Something seems to have happened to the disk and it is asking me if I want to format it...and that doing so will cause me to lose all data.  Any help?  I would really like access to the contents of that disk!!!
Dear Experts, as my understanding, Exchange DAG (for 2 nodes) is the cluster that replicate all data from Mail Server1 to Mail Server2. Is it still correct in SAN storage environment? If so, everything related to mail in SAN storage will be duplicated, am I right? Can we configure so that there is only one version of data exists on it and there are only 2 VM servers for HA-failover?

Many thanks as always!
Hi Experts,

We are using Nakivo backup and replication(installed on a windows vm) and would like to use a remote esxi as a storage option for the repository to house backups,

We have a standalone Esxi host with no production servers running on it at the remote site and would like to use this host as the offsite storage repository.

How would I present/prep this storage for use?

Thank you
I have a 500GB Flash Drive in my MacBook, but suspect the drive's nearly full.

But, in Finder, I right click the Home icon with my Name next to it, the size of the folder is 127GB.

How do I find the space on disk?

I'm installing a Dell PowerEdge R730 Server with 6 units of 2TB SAS drives on PERC H730 Mini controller. I created RAID-1 with 2 drives and installed Win2016 successfully on it. On the remaining 4 drives I created a RAID-5 virtual disk which came to about 6TB. When I boot to windows and go to Disk Management, I  see the 6TB RAID-5 volume split into 2 volumes of 2TB and 4TB respectively. The 2TB can be allocated but the 4TB is grayed out and can't be allocated. The boot is set to UEFI. I need to access the 6TB virual drive as a whole volume with NTFS, kindly advise

We have a Windows storage pool on 2012 R2 composed of 16 hard disks 4 To (3.64 To in real). The size is 58 To.

This storage pool is split on 4 storage space.

I want to shrink the storage pool to recover 3 disks.

How to proceed ? I clean one storage space and i will delete it but i dont know the proceed to reduce storage pool.


What does that mean?  >> solid state drive - 480 GB - SATA 6Gb/s >>
SSD’s use sata protocol?  compared to fibre channel, sas, etc
HP DL360 gen9 have these in spec quotes
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What technologies are common for SAN-to-SAN replication?

Also when you use a backup software to backup to SAN, how would an admin map to the location on the SAN where the backup files reside if they needed to copy a file away for whatever purposes, if they had to? Would you typically have a VM with SAN drives mapped which you could navigate to through windows, or is there other ways in order to access the data?

In terms of backups, if you backup to a local SAN, and then replicate to a DR SAN, would that be sufficient, or would you suggest a 3rd backup perhaps a tape library attached to DR SAN in case somehow both failed?Obviously there is only so much budget.
Hi Experts,

DR scenario,
We have 2 ESXi hosts that share an direct attached storage. If the shared storage failed how could i recover the VM's on the 2 hosts as i could not use Vmotion to move the VM's from the shared storage?

Thank you
How do I create a simple (not mirrored or parity) volume in storage spaces?
I'm working in Server 2016.

I have 47 disks in the pool. Here is the command I enter and it doesn't work. I have tried working with the suggestions the error message gives me, but not sure how to get this to work.

New-VirtualDisk -StoragePoolFriendlyName "Pool" -FriendlyName "Volume" -MediaType HDD -NumberOfColumns 1 -ProvisioningType Fixed -ResiliencySettingName Simple -UseMaximumSize

Open in new window

Hello -

I have swapped out bays 0 and 1 with SSD Drives (850 EVO) and using existing drives 2, 3 4, and 5. I am in the process of setting up RAID on the server. I selected Ctrl + R, got into RAID config screen, selected disk group/controller and pressed F2. I was able to create new VD. I selected RAID 1 and selected all availiable disk I want into RAID 1 (0 &1). All looks like it accepted the change, however I have Disk 2, 3, 4, 5 that I'd like to put into a RAID 10. I cannot select F2 on those drives. It is not letting me configure a new device group. I do not wan to proceed in installing my OS Server 2012 and not have the remainder of disk setup in a RAID. ANy reason why this is not allowing me to setup?


The problem scenario is that we have a test environment infrastructure that has a Dell PowerEdge R270 with 10Gbit NIC installed and is directly attached to NAS storage with a bandwidth of 10Gbit between the server and NAS. We have a Nexus 2248TP Fabric 1Gbit switch that broadcast traffic for the Standard 1Gbit Port Groups that are configured within the datacenter.  We created a new Standard Virtual Machine Port Group and configured the vmnic at 10Gbit.  If I vMotion one of the VMs from one of the Standard 1Gbit port groups, to the Standard Virtual Machine Port Group that is configured with the vmnic at 10Gbit, the ports on Nexus 2248TP Fabric 1Gbit switch will transfer from Up to Shutdown state.  I suspect the root cause to be the 1Gbit Nexus switch.   If someone can help me confirm, it would be appreciated.


We are in need for a client a new camera system for surveillance. These only need to work indoor and I would prefer them to be IP cameras, able to remotely view, and a stable system.

4TB or more storage
32 channels
24 cameras

What do you all recommend? I need great quality too.
I have a Win 7 Pro machine in the office that is rarely used.  I has a 1TB hard drive that was never more than 1/4 full.  I noticed a message on the machine today that the hard drive was almost full.  I checked the properties for the C; drive and it really, really is.

When I checked the storage in each directories, all but one had the expected amount stored.  The exception being the \Windows directory which is over 500GB.  I checked the Windows directory on my other  Win 7 Pro  machines and they range from 30 - 80GB.

500GB is some serious bloat.

I have not used the machine in months but it is on most of the time.

Any ideas on what is causing this and what can be deleted?
I have seen scattered info but nothing definitive and that has step-by-step instructions.  The obvious hurdles are:
-How do you install Windows when it won't recognize the RAID Array in the Windows installation?
-Can you partition a C: drive at 100GB and a D: drive at 3.9TB? If so how?
I want to get an optiplex - 3050? 5050? to use as a 'server' in a workgroup running win 10. I want that machine to have RAID 1 (enabled in the bios / running intel matrix storage software) I don't see dell offering that setting on their website as you build the machine to buy it.  So the 2 drives you include are JBOD.

I'll have to image the hard drive, configure the array in bios then restore the image?

is there a way to get them to build it as raid 1? or is that a sign that the machines don't support hardware raid?

I do see this page:

that says most desktops can do this... and then tell you how to do it yourself.  vague.
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One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

I am trying to learn some basics about tape backup systems from a risk management perspective. I am not involved in the actual performing of backups but from a risk and compliance angle I need some basic information:

1.      If we use a backup application which is installed on a specific server – what is the name of the attached device which handles the actual tape backup process? Tape backup server?

2.      What physical involvement is there with IT staff in relation to tape backup systems, do they insert the tapes each day, and remove once complete, or is it common the tapes are in position all week and then removed at the end of the week?

3.      Is each tape specific to an individual job, or do they same jobs store backups from multiple jobs/devices?

4.      How could you test if the team are using an effective tape rotation system, and are there any common mistakes/bad practices admins could follow in relation to this?

5.      If the tape backup "device" failed, what safeguards do you need in place specific to that device to ensure service can be restored quickly. Does the device itself need backing up/standby device on hand with build docs etc.

6.      What are 'catalogues' in relation to tape backups, and how could someone determine which tape holds the backup of which job/device?
I have here seven Hitachi 500 GB SATA drives purchased used.  The drives are definitely SATA and not SAS or Fibre Channel; see the image below.  They appear to be standard SATA drives, that's what the label says they are and that's what I expected.

The drives are mounted in server-style sleds.  There's no manufacturer name on the sled; there's a logo I don't recognize on an oval release button on the front, perhaps someone will know from the picture.  The drives are absolutely clean and dust-free.

As I tested them for function, every last one failed to present to the host system BIOS.  I've tried them on two different systems and the BIOS does not see the drive at all.  Each drive makes a brief "peep", clicks in what would seem to be a recal, pauses about half a second and then cycles through this again.

The seller claims that the drives worked before shipment.  When I pressed further on this, asking specifically whether the drives were individually tested, the response was "They worked in the server."  From this I assume that they were not individually tested for function and the seller equated "works in the server" to "works as an individual drive."

Now I can believe one, two or possibly even three drives DOA but not the whole lot, and I find it hard to believe that anyone would knowingly sell dead drives as working on fleabay.  (Side note:  The seller issued a refund, that's not an issue.)

Possibilities as I see it:

  • The drives were DOA when
A client of mine would like to spend around $1,000 for a Network Attached Storage (NAS) device including the prices for the hard drives.

What types of NAS with the hard drives included can be bought for around $1,000?
Hello Experts,
Many workers in a company are using cds as usb to store small backups for their files.
They mostly add, rarely replace or delete... until its full and then a new cd is enabled.

How reliable is this method ?

Can cds be used like this indefinitely ?
meaning if you leave it as a USB mode, will It keep info safe for how many years ?

And once full can they be burned so data will be permanent ?

Need to wipe Dell Lefhand SAN HPP4500G2.  What are my options. It will be returned to leasing company.
Hi there,

We have Ex2010 and Ex2016  running. We tested migration and the users are able to work on both sides. But the migration process is veeeeeeeeeeeeeeeeeeeeeeerrrrrry slow and exchange is only moving one box at a time. The others are stalled with "StalledDueToTarget_DiskLatency". We checked storage, network, antivirus ... nothing found that could be a problem. When we copy a file directly from one machine to the other it copies with a blast.

Ex2016 Databases are in DAG. Created a MBX out of the dag to check if it is the problem - no.

Installed Exchange 2016 CU 6.

Ripping my hair out :( Any ideas?







Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.