I wanted to know if it would be smart to run Seagate Nytro Enterprise SSD mixed use drives in Raid 5
I have read mixed reviews about running ssd's in Raid 5 on a server. The server will have a few VM's and be a file server as well.
The drive I was looking at is the XA1920ME10063

I just purchased a HP ProLiant DL380 Gen10. I have 6 2.4TB drives configured with RAID10 ADM. When I load Windows, I only show I am getting just under 5TB. If my calculations are correct, shouldn't I get over 7?
Am I wrong in my calculations?

My WD DL4100 NAS device has become inaccesible. I cant ping its ip address and it seems to be stuck in a power cycle loop. The disk 4 disks it contains are setup in a
RAID 5 configuration.

We have an identical NAS device that is being used for another purpose.

Would it be possible to simply move the disks in the broken device and put them in the other identical NAS. Would it then boot up and will I be abkle to access the data?

Any help would be appreciated.

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?

Thanks!

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

Hello all,
I'm configuring an HP Z420 workstation with a 1TB SSD system drive (Boot /OS Drive) and two Enterprise 4TB SATA HDD for storing all my data in RAID1 . I wanted to know what the best RAID1 configuration would have the best performance for how I will be using it.

I mostly will use the workstation for document editing (word, excel, PDF, PowerPoint, Visio, etc.), internet , watching videos.

I plan to store A LOT of personal photos (thousands) in RAW format (each can be 15MB to 40MB) on the 4 TB RAID1.  I do some minor photo editing on photos using Google photos and I also store personal video files as well. I rarely edit videos and they are usually no more than 15min long but I do have a few longer than 1hr.

The workstation has the following RAID CARD:
LSI Logic SAS9260-8I SGL -8PORT, Int 6GB SAS/sata,  Pcie 2.0, 512MB RAID Card WITH a battery backup on the card itself. I also have a UPS for the computer as well.

The RAID configuration page has the following options (Image attached):
- Raid Level (I chose RAID 1)
-Stripe Size ( the options here are- 8kb, 16kb, 32kb, 64kb, 128kb, 256kb, 512kb, 1MB)
-Access Policy (RW is the default)
-Read Policy (options here are- Normal or Ahead)
-Write Policy (I chose Write Back with BBU since I have the Battery backup unit but other options are Write through, Always write back, write back w/ BBU)
-IO Policy (Options here are- Direct or Cached)
-Drive Cache (Options here are- NoChange, Enable or Disable)
-Disable…

I have a desktop computer (Alienware) with four internal hard disks, with a RAID motherboard.  Two of the disks are striped (the c:\ drive) and the other two disks are mirrored (the d:\ drive) and contain all my data.  The c:\ drive contains my operating system (Windows 7) and all my programs.  I want to replace the c:\ drive disks with 2 SSDs.  I want to clone the c:\ drive and then transfer this clone to the 2 SSDs, which will constitute the new striped c:\ drive.  I have cloned and transferred an old hdd's content to a new SSD, but without RAID.  It was easy.  But how do I do the same with a RAID system?  I'm at a loss as to how to proceed.  

Thanks, WmABradnan
wm.a.bradnan@earthlink.net

Hello everyone.

For starters, I do not make a lot of money in my self-business.
So, I have to get what I can get, in order to grow.
With that said.

I have just purchased an Intel SR2500ALBRP
The motherboard: S5000PAL

In the following image, you will see a BLUE set of SATA cables with a single PLUG at the end.

Now, The PCI riser assembly has only a NIC Card on it with DUAL 1G nics.
My question is simple.
WHAT RAID Card do I need to get, to connect this with?

Thanks.
Wayne

Hi, I have an odd question that would like to know what others are doing these days.  I know keep doing the same thing because that is they way it has always been done, isn't the best choice.

I am setting up a RAID 1 array on a HPE ProLiant DL360 Gen10 server with Smart Array P408i-a.  In addition, I have 3 HPE 300GB SAS / 12Gb/s HDD's.

So, my intent is to setup a RAID 1 array with a hot spare.

This will be supporting a Windows Server 2016 - Standard domain controller.


With all that being said, what strip size would you use in this scenario?  64KiB?  128KiB?  256KiB?


Currently, the default is 256KiB.


Just curious.


Thanks in advance.

I can't get one of my servers to power up. I don't believe it's a hard drive issue, more importantly for the sake of this question, I don't believe it's a hard drive issue. How do I recover data from the RAID?

Dear Experts

I have a question related to controller M1015. I want to use it in IT mode for Unraid server.

In specification I can read this:
The ServeRAID M1015 SAS/SATA Controller has the following specifications:

Eight internal 6 Gbps SAS/SATA ports
Supports SAS and SATA drives (but not in the same RAID volume)
Two Mini-SAS internal connectors (SFF-8087)
6 Gbps throughput per port
LSI SAS2008 6 Gbps RAID on Chip (ROC) controller
x8 PCI Express 2.0 host interface
Supports RAID levels 0, 1, 10 (RAID levels 5 and 50 with optional ServeRAID M1000 Series Advanced Feature Key)
Connects to up to 16 SAS or SATA drives
Supports up to 16 logical volumes
Supports LUN sizes up to 64 TB
Configurable stripe size up to 64 KB
Compliant with Disk Data Format (DDF) configuration on disk (COD)
S.M.A.R.T. support

What I do not understand is - does this controller allows to connect 16 physical SATA drives? If yes why it reports only 8 internal ports?

many thanks for your advice

Vladimir

Probably a fairly "classic" issue but I have surprisingly not found definitive info about it online.

What is the best practice managing hardware RAID controllers on ESX Hosts ? Ideally, we would like to be able to "reach out" to the controller from a Windows guest VM but if not possible at the very least have some management capability (expand RAID, check array consistency) from ESXCLI.

How should we go about it ? In our specific and immediate case ESX6.5 with Intel RMS25CB080 controller.