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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Hi, I’m after some advice on HyperV setup with SAN
We currently have one Proliant Gen10 running HyperV
The first two NICs are Teamed together and plugged into Vlan 1. (Host management network team)
Two further NICs are teamed together and used for the Virtual switch. (Virtual Machine Network Team).
All VMs are currently stored locally on the Server

We will be introducing a second Proliant Gen10 and a HP MSA2052 SAN
The goal is to move the VMs to the SAN and set up failover between the two Hyper V hosts.
Does the second Hyper V Host get setup the same as the first Hyper V Host?
(Host management network team) and (Virtual Machine Network Team) plugged into a switch(s).

Then connect both Hyper V hosts directly to the SAN using the ISCSI controller ports?, or do the ISCSI network ports on the HyperV hosts and the ISCSI ports on the SAN both plug back into the network switches?
If it’s the latter, do we still need the (Virtual Machine Network Team) ?

Some guides mention MGMT, are they referring to MGMT in respect of having access to the server for say ILO access, or are they referring to connecting them to the primary VLAN for normal data traffic

Kind regards
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Just specing out a server, single host to run 4 VMs, Going with a Dell Poweredge Perc h 730p.   with 2 GB of RAM on the controller.  How much does the RAM on the controller really impact performance?  Nothing is tremendously I/O intensive.  Would there be a substantial difference if I could update it to 4GB?

Thank you for stopping by!

To no avail, I have done a ton of reading here and there over the last couple of years on how to get TRIM to work for SATA SSDs in a RAID1 configuration.  I believe TRIM would work fine if I switched to RAID0, but that's not what I want to do.

I'm aware of the pros and cons of simply foregoing RAID with SSDs.  I might go that route and I don't need further convincing.  To skip RAID1, I simply need to be convinced that I won't be able to get TRIM working.

I'm also aware that TRIM isn't completely necessary; I just need to expect that the drives won't perform quite as well over time and won't last as long, kind of defeating the purpose of fault tolerance.  Interestingly, the 1TB Samsung 840 EVO drives I'm currently using have been powered on for over 7 years and each have over 53TB of data written to them.  I guess the age of the drives is why I'm getting more anxious to find conclusive answers.

About a year ago, when I decided to be done with Win7, I destroyed the array, erased and TRIMed the drives, re-created the array, and installed Windows 10.  The temporary performance boost after a TRIM was immediately apparent.

I could accept that TRIM with RAID1 is impossible if not for the last statement at the URL below, which practically proves that it can be done with the right motherboard and possibly with the requirement of using a Xeon processor.

I have a client running a HP DL380 Gen 9 server in a single server environment.  It is running ESXi 6.7 Free edition.  I have some thin provisioned VM's that have about 1.5TB of free space now on their drive and I need to free that storage up for the datastore.  I am showing that VAAI is not supported.  

I have little experience with VAAI and not sure if this is something that only works with SAN's or if it is supposed to work with local storage as well.  Any thoughts would be great and this is also a critical production server.

Our users scan to their scan folder from the copiers. And the user can access and open the files they have personally scanned to their scan folder.  
Now here's the problem.  After they have scanned that file to their scan folder they move it to another network storage location for other staff to see. However, the other staff cannot open the file but the person who created the scanned file obviously still can.

I have a windows domain environment and the Document file server is on a server 2016.

kind regards,
If we migrate outlook drives via recover point on SAN

Will ost files will be double downloaded of users
In those systems with 16GB of optane memory and a regular mechanical sata drive, would it be better to replace the optane memory  with a nvme drive?  I have a customer getting a system  to produce music. It  comes with 16 GB of optane memory and a regular hard drive. The optane only speeds up the operating system. I’m thinking it would be better to take out the optane memory and replace it with a nvme drive. They’re cheap these days.
I have over 60 stores that use cash registers for sales.  I have a method of collecting every transaction from a cash register by capturing the cash registers electronic journal through the serial port.  The data is all text based, but very unstructured.  (I am including a sample file of this data capture to this post.)

The question I have is this:  IF you were tasked with storing, then retrieving and analyzing these data; what type of database storage system would you use?  And why that one?  

I am waffling on whether to use a SQL or NoSQL solution.

Thank you,

Here is a sample of the raw data capture.  (Note: about half of the way down there is something called a "Z report"; which is run when a cash register is closed out.  That zero's out all of the balances and totals during that period of time it was operating.)

DATE  10/09/2019 WED  TIME 02:17
2X             @ 4.29          
Purses/Backpack T1         $8.58
Childrens Clothing T1      $1.99
TAX1                       $0.63
TOTAL                     $11.20
CASH                      $12.00
CHANGE                     $0.80
CLERK 1        No.000072   00000
DATE  10/09/2019 WED  TIME 02:18
5X   …
I currently have a site where we had originally purchased a 3-2-1 (3 servers – 2 ISCIS – 1 SAN) solution back in 2012. The SAN was upgraded about 4 years ago, but we are really at a point where we need to do a full refresh. Overall the setup has been good and haven’t had any major complaints from end users.

Due to the single point of failure and latency sometimes incurred during backups, large upgrades to our application server which uses SQL, and RDS use, I was hoping to move away from SAN and use local storage while keeping the HA / vMotion features.

Obviously, VMware’s vSAN came straight to mind even though I knew I’d basically have to purchase all new licensing (Currently Essentials Plus) and vSAN.

We will be replacing all our Windows 2008R2 VMs with Windows 2019 but here is a quick overview of performance:


After the upgrade it be similar to another site and VM count.
Overall we should not have over 12-15 VMs. There will be 1 RDS server which will probably have around 32-64GB of RAM but I usually dedicate a host for that VM.

I called my Dell rep and tell them about the refresh and budget I’m trying to stay in for hardware and any VMware licensing and of course they come back with the vxRail solution, Enterprise Plus Licensing, etc, with a price point 3x my budget. I feel like I’m talking to a car salesman looking to see how much they can get out of me and…
Currently in our environment we are using NetApp  for our VMware environment, but will most likely will be purchasing a new Pure Flash array shortly.  We do have FC connecting our hosts the the upstream switches, but do not use an MDS. If we want to use FC with Pure, how would we zone the storage. Would we need to do lun masking on the host side?
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I have a stand alone Hyper-V server, VMs are located on a storage on a iSCSI shared disk.
Now I have another server to add as an Hyper-V new node, so the idea is to configure Hyper-V fail over cluster.

It's possible to "migrate/install" the actual stand alone Hyper-V production node to the new scenario using the same iSCSI shared disk ?

Can load the VMs load over the 2 nodes ?

Hi there.

My brother got an issue with a Seagate Central network disk. The network part doesn't work anymore, and he wants to rescue the data and copy to a usb-disk/computer drive etc...
The challenge is that Seagate utilizes a file format related to Ubuntu/Linux. He tried to pull out the hard disk from the storage unit and hook up to a Windows computer via USB. That didn't work that well, because the 3TB drive apparently is formatted in like 500GB partitions with a Ubuntu/Linux format. That is not recognized by Windows.
So the task is how to move/copy data to a "normal" disk that will work with Windows.
I found a Gparted software that is supposed to do the trick, but we're a bit insecure about what to do and if this is the right procedure.
Did any of you out there try a similar task? We would prefer if it's possible to do the whole thing with a Windows based software.
Looking forward to your suggestions.  :-)

Best regards

Really I just want to check that what i am doing is a supported config.

I have 3 servers i use for HCI using S2D 2019.

I have 3 Virtual Disks all using 33% of the storage minus 1 spare HDD for failure(cache + ssd + hdd) seems to be working ok.

I want to add 8 1TB drives into each of the servers to create a new virtual disk that only uses cache + hdd.

The HDDs are a different model than the HDDs used in the other 3 virtual disks. I know that i should utilise only the one storage pool, but would i still be in a supported configuration, on top of that how would it know what disks to create the new virtual disk on? I dont want it to attempt to use the space capacity disks i currently have (they are 1.6tb disks) with the new ones i intend to use (1tb disks)

Thanks in advance for any feedback!
We are redesigning out current ZFS file server. It currently only has one pool of over 70TB.

I see this is a problem since, if there are enough disk failures within the pool to make it non-functional, we have to restore all 60TB of currently existing data.

A debate has risen as to how to divide up the storage into smaller pools, and how big/small each of those pools should be.

As I see it, the only drawback of using pools that are "too small" is a lot of wasted disk space. We are using `4TB 7500 spinning disks` with `4TB SSD cache disks`. So, I'm leaning towards 20TB raidz vdisks.  That means we get about 77% of the disk space usable.

Q: Are there any other advantages/disadvantages to making the pool sizes too large/too small?
776 (Ready for Recovery) Logical Drive 1 (1.4 TB, RAID 5) is queued for rebuilding. hp server g5 ml350 server has been in this state for 2 weeks server has been restarted still says ready to rebuild not sure where to look next thanks
When I go into my Photos app, I'm seeing pictures that go back to 2017. When I look at my Storage, it says that I've got over 4 GB of photos sitting on my system. Yet when I go out to my Photo library, I'm seeing this:

Photos screenshot
Everything obvious says that the only pics I should be seeing are 2019 and that's it. I've saved everything else to another drive, but the fact that I'm still seeing pics from 2017 in the app and the fact that over 4 GB of photos are still on my system tells me that there are pics on my system that I'm not seeing.

Where else can I be looking?
Hi We are using Visual Studio and we want to start storage PDF or some other files in DB but we would like to know which is the best DB to do it?

we have SQL, Mysql, and MongoDB    if you know other, please advice
I have a PERC H330 card and would like to build an 18TB raid 5 array out of four HGST 6TB SAS disks. Two disks are 512b, 6Gb/s and the other two 4KB, 12Gb/s.

For some reason though I cannot add them into the same array. They work in separate raid 1 arrays but that isn't what I want.

Is it perhaps the case of an old firmware version on the PERC card (4.290.01-8335) or I simply cannot combine the two types of disks together?
I'm running Parallels on my Mac and I'm being told that there isn't enough room to start Windows. When I look at my Storage, I have this:

screenshot of HD
I have deleted all of the content in my "Documents" folder and yet this graphic tells me that I've still got 14 GB of content in "Documents."

Where would this content be?
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I need to know the difference between
-  HPE 128GB (1x128GB) Octal Rank x4 DDR4-2933 CAS-24-21-21 Load Reduced 3DS Smart Memory Kit
- HPE 128GB (1x128GB) Octal Rank x4 DDR4-2666 CAS-22-19-19 3DS Load Reduced Memory Kit

I mean which one has better performance

Looking for PS Script;
Powershell Script to find Hyper-V Cluster-wide and Host level storage space available and export the Data to Excel Sheet with 2 Columns and 2 Rows:
Columns Required: 1) Total Space available in Cluster 2) Total space available in Host​
Rows Required: 1) Cluster Name 2) Host Name​
Server Edition: Microsoft Windows Server 2016 Datacenter Edition - Hyper-V
Dear Vmware Experts

We have VSAN Hybrid cluster 18 nodes  with around 370 VMs  

Every server has 2 ports every port 10 G

Our core switches has 40 G   speed

Right now we have some performance issues most of the performance issues related to the Storage and network performance

So we are going to buy a new 6 servers and we are going to build all Flash VSAN cluster

The new servers will have 2 ports  10 G each  and 2 ports 40 G each

Both cluster new one and the old one will be managed under the Vcenter  (( we are using VMware distributed switch ))

After we build the new cluster we will start to migrate the most critical VMs from the old cluster to the new cluster one

And here my questions

1-      Using V motion changing host and data store between two clusters it will work without issues?
2-      When I V motion a VM like file server 40 TB can our user still use this file server or this not possible due to performance issues

My main concern for such plan the effect for availability and performance for the VMs which I want to V motion between the two cluster

Do you have any recommendations to achieve such target with fewer end users interruptions

Kindly advice

I need your help to put together Powershell script to

Script 1 - BAK extension file Audit

1. Script needs to be able to use input server file (server bulk)
2. Scan servers drives (E:\, F:\, G:\ or I:\) or be able to select drives
3. Look for  “*.bak” extension files.
4. Generate CSV output files with
       a. server name
       b. Bak file name and path
       c. File Size
       d. Dates temp of the file.
       3. hash
5. Email report to specific email address

I have a Audit script but it doesn't work correctly. It scans all drives, doesn't provide date of BAK file creation. It doesn't sent email with report

$ExtensionList = @('.bak')
Get-PSDrive -PSProvider FileSystem |
    ForEach-Object  {
        Get-ChildItem -Path $_.Root -Recurse -ErrorAction SilentlyContinue |
            Where-Object { $ExtensionList -eq $_.Extension } |
            ## ForEach-Object { $_.Name, $_.FullName, $_.GetHashCode() }
            Select-Object @{Name="Name";Expression={$_.Name}}, @{Name="Hash";Expression={$_.GetHashCode()}}, @{Name="FullName";Expression={$_.FullName}} |
            Export-Csv -Path C:\Temp\BAKAudit\BAKAuditReport.csv -NoTypeInformation -Append

I don't have BAK deletion script, which should do as follows

Script 2 - BAK Deletion
1. Use generated output file (from script 1) and remove"Bak" file older then 3 days.
2. Once the deletion is completed another report should be created showing what bak files from which server and from …
Single Hyper-V 2012 host server, one Windows Server 2012 VM running SQL Server 2016.
iSCSI storage is connected to host via two 1G links (MPIO).

PerfMon traces on the host server show high latency (40ms+) on iSCSI NICs, but only 20-50% bandwidth usage.

Storage system stats show similar info to host.

We're considering upgrading the SAN to 10GbE, but not sure that would improve performance we're not maxing out the current bandwidth.  Same uncertainty for adding additional links from host to storage

What other information can we gather toward identifying bottlenecks?
How can we improve iSCSI latency?
Please please can I have a DEFINITIVE answer:

I(f I am running exchange 2010 and above, with the program files on c drive and database on d drive, using default exchange values, will the mail flow be disrupted when the disk (c or d) gets to 10% or below
If not, will the disruption just depend on how much physical disk space there is for log files, database data etc and not on a % cut off

Can someone please give me a precise answer on this






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.