Storage Hardware





Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.

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Let me preface this question by saying I am a Windows guy with limited Mac experience.  My daughter, who is out of the country for a couple of months, is having serious problems with her MacBook.  I do not know the model number (can get it if it is important).  What I do know is it is roughly 4-5 years old and has a 256 GB SSD hard drive.  Her problem is that she keeps trying to delete files, but her free space has continued to shrink so that now she has less than 1GB free!  I don't know how the computer even boots.

A week ago she ran properties on her HDD and far and away the biggest storage hog were documents.  They were taking 142GB of space.  At that time, she had 5+ GB free.  I told her she should try to have 10% free, if not more, so assuming a Mac is like a PC she was still way past the safety margin.

Part of the problem I think has to do with iCloud.  She doesn't know how it got on her system, she does not like it.  But I think she has tens of GB of data (mostly pics and movies) on iCloud.  It looks like she has some kind of link on her computer, and the main file is in iCloud.  But maybe the files are local.  I am not sure.

I tried to help her two ways.  First, I got her setup with Dropbox.  She put roughly 12 movies into her dropbox folder that totaled 2 GB.  I logged into the Dropbox from my Windows PC at home, downloaded the files, and confirmed the movies worked.  I then stored them offline and told her to delete them.  After deleting the …
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Hi, Im trying to delete a virtual disk but i got this message
These are all the alarms that I got.

Please Help, I am really new on all this storage thing :(
Just got a new ZBOOK G4 and i added my old sata HHD (that was on my old ZBOOK) but somehow the HHD is not detected in the BIOS ... is there anything special we need to do on the hardware in order for the second drive to work ... (other than placing the HHD in the caddy and place the drive inside the laptop of course)
The hard drive is from an NVR (Network Video Recorder) and the manufacturer indicates that the drive is handled as UBS - Uniview Block Storage.  The drive has been pulled from the NVR and works properly in another (same model) NVR, but I'm looking to access the drive on a desktop computer in order to pull files stored on the drive...  This is a SATA (8TB) drive...

Anyone have any advice on potential ways to mount this device in Linux or other O/S that might allow me to access these files, or other meaningful suggestions?  Thanks in advance.
I have a Perc 5/i installed on a PowerEdge 1900.  I have four 750gb hard drives that are in a RAID5, potentially.  The Virtual Disk was initialized and when I just hit the Enter key on Controller 0 I am told:

Configuration is not allowed!
ERROR Code: Unknown

There are no errors outputted on the tiny screen.  Yesterday it told me that the ROMB battery was dead, so I replaced that, and now no more errors.  However, there is this problem now.
My laptop don't have a drive

can you recommend a good wireless memory 1T or more?

Hello Experts,

Does anyone know the procedure for backing up the Raid module configuration on a Dell MD3260?  We are replacing the Raid module controller battery and have it listed in the steps to save a copy of the configuration file in the MD Management console but it does not have any further instruction.

Thank you,

This problem just recently appeared and I can't figure out what is going on.

First some specs:
- Core i5 @3.8 GHz, 32GB
- Windows 10 Pro - 64bit
- MediaSonic ProRAID box on eSATA

Writing to other drives is at typical speeds.

The problem appeared just recently where moving mixed data files (various sizes from 1MB to 1GB to the MediaSonic will begin writing at around 70 MB/s and withing 20 seconds, the write speed will fall to between 600 KB/s to 4 MB/s. This isn't normal and in the past, I could sustain an average write speed of ~ 90 MB/s.

- If I cancel the write operation, the drive will continue writing for a long time (20 minutes) - it appears to have a backlog of files still writing - when looking at the resource monitor.
- Task Manager shows 100% utilisation until all the writing is completed.

What I am reasonably certain about:
- No known changes to the computer.
- No error or RAID failures on the MediaSonic.
- Read speeds on MediaSonic are normal.
- No viruses.

What I've tried:
- Shutting down Windows 10 notifications (lot's of chatter about that).


The one characteristic that has changed is that I enabled Windows 10 disk compression on selected folders of the MediaSonic volume.
I just did some testing and found the following:
- Writing to a compressed folder: sustained speed average: ~ 1.5 MB/s
- Writing to a non-compressed folder: sustained speed average: ~ 16 MB/s

In both cases, the …
We are using EMC VNX 5300 which is running out of space. It also hosts CIFS shares which are heavily nested. Plan is to add another DAE, have quota enabled file system and move CIFS shares to the newly allocated space. Any suggestions on how this can be achieved with minimal efforts.

As per understanding:
1. Add new DAE via Unisphere.
2. Create a new storage pool. (RAID 6+2)
3. Provision new LUN and create volume.
4. create file system.
5.create mount point and mount on datamover.
6. create quota trees.
7. Create cifs share.
These parameters to be identical to the existing file system from which data will be copied. And,

If this looks okay, any inputs on next procedures..  Thank You!
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I'm not sure if the 4TB WD HDD I just got from Amazon is GPT or MBR partitioned but looks like the
driver was auto-installed Ok on my Win XP as "Safely Remove Hardware" detects it & I could 'Stop"
it from "Safely Remove Hdw".

However, using "Disk Management" & despite "Rescan Disks" & "Refresh", can't detect it.
in command prompt,  Diskpart's   "List disk" can't detect it too.

I have other 2TB disks which could be detected & formatted on this Win XP laptop.

How should I go about using this 4TB WD HDD?
Instead tape to tape library and the tape can be move to drive or slot. What is the purpose\ advantage of drive?
What I need is to return a single partition ID by supplying a LABEL so I can use it in a bash script.

For instance partid = somecommand DATA-BU would store the partition is in a variable.  

What sayeth the group ?

I have seen ls -l /dev/disk/by-label will show me ALL LABELS > Partitions as shown in this picture, however I only need a single one and I need it in a variable form.

First, let me say a couple of things for background:
- I have found a number of HDDs that "test OK" but deliver data dreadfully slowly.
- I've only found HD Tune benchmark to identify such drives.
- That this failure mode exists is proven by many cases of "slow" being fixed with a new HDD clone.  In the first case I encountered, years ago, the computer took 45 minutes to boot but still worked albeit very slowly.  When a clone replaced it, everything was back to normal.

A "bad" drive in this regard will show in the benchmark to deliver data perhaps over 100MBps but plunge to 2-2MBps and stay there for quite a while.  A "good" drive may show some negative spikes but they are short-lived.  Subjective, yes.  Effective, yes.

All well and good but now.....
I have a computer that was showing "bad" results (after being just slow in operations).  So, as above, I replaced it.

Just for kicks, I tested the new drive and got "bad" results.
I suppose I could imagine that the "new" drive is "bad" but that being unlikely, I thought I'd investigate THE COMPUTER.

Z68XP-UD3 MB with WD2003FZEX-002Z5A0 HDD.
I tried SATA ports 2_5, 2_4, 2_3, 2_2, 3_1 and 3_2. The new drive had the same sort of plunging performance behavior except 3_1 and 3_2 were better. Should the SATA ports each show such different results? I even ran it in Safe Mode to reduce any other loading.
I do know that the SATA 3 ports are 6GBps and the SATA 2 ports are 3GBps - but how would that matter in this …

I have the following situation for Dell Server 2950 with Perc 6/i Raid Controller, the server has 3 Disks Configured as Raid 5 with SAS 300 GB  each and one SATA Hard Disk configured as Raid 0 .
When Clicking Virtual Disk using open manage it shows the following :
Physical Disk 0:0:0 - Online
Physical Disk 0:0:1 - Online
Physical Disk 0:0:2 - Online

Physical Disk 0:0:1 down , we tried to replace it with 600 GB but it did not rebuild but it shows like this in Physical Disks : 0:33 (check attached) Online
We assign it as as "Global Hot Spare" (which is Wrong) and new hard drive has been built as hot spare.

Today we received new 300 GB, so we replace the 600 and it has been built without issues, the Led blinking Amber instead of Green and Virtual Showing like this :

Physical Disk 0:0:0 - Online
Physical Disk 0:0:1 - Removed
Physical Disk 0:0:2 - Online
Physical Disk 0:33 - Online

And status of Virtual Disk is Green, I am attaching some images for more info.

Is this OK ? Can we restart the server ?

Thank You
I am tryiong to backup a Western Digital NAS to 2 external USB hard drives. The NAS is running Windows 2008 Storage essentials.

The drives need to be rotated with a drive being taken offsite on alternate nights.

It also needs to send an email notification on job completion or failure.

I have tried using the built in backup utiity in Windows but it doesnt have email notification. I have tried using task sacheduler to send email when certain criteria are met but it just wont work for me.

Does anyone have any suggestions for a simple, free backup solution that will do these 2 things?

Hello everyone,

I have an IBM DS3524 on which one of the logical drive size threshold has exceeded.
I have freed up some space but the alert is still there and the consumed capacity is incorrect.

Is there a way to force it to refresh ? I have searched but I did not managed to find any solution.

Thanks in advance for your help,

I bought HP DL380-G4 server from eBay and it seems to work but I'm having problems installing Win 2003 OS- I've 6-hd @ 146 GB/ - I created the RAID containers- 2-RAID-1 and 3-RAID-5.  I tried to separate 6th had as a spare but I unsuccessful or couldn't figure out how to-?
This is my home network- lab I want to practice with it before joining the server team in a month or so.  
I tried to run SmartStart 8.70B for x64 and booted to the CD but it ran for a good 5-7 minutes loading but then I was left with a HP screen and no activity. So I decided the power down the server.
Windows is not able to see the hard drives? What am I missing here?
I have a  EMC VNX 5300 storage.i connect 4 new servers to the storage and now want to assign the LUNS to the servers.
 i found that there are 3 storage pools already configured with RAID 1/0 and some of the servers are connected to this storage pool.
now i want to create a new storage pool with RAID 5 but when i create a new storage pool it automatically add x number of disks to the storage pool.

q#1 i am scared that if i will create a new storage pool then it will not disturb the other storage pools (RAID 1/0) which are already configured.
q#2 i found that 18T RAW disk space free .how can i use this RAW disk space to create a new storage group and assign all the new LUNS from this storage Group
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Hi, I have a small 3 user setup, we had an sbs server that got ransomware. We've restored the backup.
But I would like to look at removing a windows server from the network and move to a NAS that syncs in both directions with dropbox.
We aren't heavy users, but require local and remote access to the basic data.

Does anyone know of a NAS that will sync in both direction and not just do the NAS backup to dropbox ?

thanks for your time.
I have a customer with a Dell PowerEdge T320, the main drives are running RAID 0 and then they have (3) 1TB drives running RAID 5.  Last week, drive 4 came up with a PDR1101 error but everything seemed to work.  When I had this before, I just swapped the drive with a new one and RAID took over and wrote everything to the new drive.  This time, I swapped it and everything was working fine - I could access all the mapped drives so left the site.  Today they tried to get into their programs and there is only one mapped drive showing and it says that new drives must be initialized.  I tried to put in the old hard drive but get the same message - thoughts?  The system is running SBS 2011
hello everyone
 i wanna ask how can we upgrade on disk format of drives in vsan. do we need to put host on maintenance mode. or we dont need to.
also is it possible to upgrade the disk version of a particular disk group at a time.

please suggest and help
I am running low on space on a Server with 8 72GB Hard Drives in a Raid 6 Array

I would like to purchase 8 250GB Hard Drives and expand the space.

What is the best procedure for doing this.

I assume I will add 1 Hard Drive at a time - let it build and then add another - I guess that will take several days as each drive is added (or am I wrong)

My goal is to add the 8 new hard drives and then Expand the array for the added Hard Drive space.

We have the Primary Server and 3 Virtual Servers all using Hyper-V

Thank you for any suggestions

Can anyone help me with the best way to do this?
hello everyone. vsan setup

so i have four hosts.
2 hosts having 2 disk groups with 1 ssd and 5 hdds each
and 2 hosts with 2 disk groups with 1 ssds and 3 hdds each.

that make a total or near 34 tb of storage space.

tomorrow evening i am planing  to change ssd of the host one by one and at the same time i am going to patch my host with 6.0 u3 including drivers and firmware.

right now  the space i have in my data store is little less than 11 tb actually its 10.66 tb.

i have couple of confusions and questions that are stressing me.

1. should i choose the ensure accessibility to change the ssd and to patch?
because 2 days before i talk to gss team member during a call log and he said that we can change the ssd with ensure accessibility.
2. if i choose the host which have 2 disk groups with 5 hdd and 1 ssd each. what is the possible way to do that activity because i have only approx 11 tb of space.
3. should i remove one disk group with full data migration if yes how to check which ssd to remove because led function is not working .
4. even if i choose to do by one disk group at a time but when i will remove the disk group to change the ssd space with decrease to 6 or may be 5 tb which is 11 tb now.
5. and if i choose full data migration of that big host have more hdds space will not be enough.

so in this scenario which is the best possible way to do the activity of patch and replace of ssd.
as per my small experience storage space is a big issue …
I have 2 servers.  Both DL360 G6 servers with identical processors.  Both use the P410i controller.  The source server has 2 backplanes and 8 SFF hard drives.  The destination server has only the lower backplane.  

I need to move the RAID 10 array (4 drives) from the top backplane of the source server to the bottom backplane of the destination server.

When I swap the drives with the server offline I am told at bootup that the drives are not in their correct bays and recommends I run the Array diagnostic utility.  However the options available after that are bios setup and array configuration utility.  The latter does not allow me to fix this issue.  It would only allow me to delete the volume and start over.  

I am able to reach the storage controller CLI however none of the commands listed in help seem to have the functionality I am looking for.  I have run the SPP on the server hoping that it would update firmware etc.  

Is there a simple solution for this or do I need to backup/restore?

Storage Hardware





Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.