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Raid 5 Rebuild Part III

HP iSCSI only works with RAID 1 (and not RAID 5)!
We have been attempting to solve a series of problems with our new servers using HP's MSA1510i (iSCSI SAN), but haven't gotten anywhere for over 4 weeks now. We have two servers attached to the MSA1510i, on its own gigabit network, yet the server with SQL server on it particularly keeps on running into iSCSIPRT errors, resulting in the server locking up. We are getting nowhere fast. I was wondering what other's experience with HP iSCSI has been like? Has anyone had success in a Windows 2003 R2 environment?

We've tried a variety of things, and now have been asked (by HP support) to change the disk striping size (from the default), change from RAID 5 to RAID 1 (because there are problems with RAID 5 on the MSA1501i) and there are problems with the Proliant network drivers in working with MSA1510i (but we haven't yet learnt what fixes are needed).

It would help to hear if any are having any success (or otherwise) with HP iSCSI.

Ghosting RAID 5 Configuration
I have worked with Ghost for some time now and really don't have a complaint with it, except dealing with RAID 5. Symantec doesn't tell you that you can't ghost RAID 5 but they don't offer support for it either. I have been able to ghost RAID 5 but the restoration has been another story. It seems that when I try and restore the image, I receive CRC32 errors and never successfully restore my image to the RAID 5 drive. I have tried a multitude of switch configurations, but it doesn't seem to matter. Has anyone ever successfully restored a RAID 5 configuration from a Ghost image and if so, how were they able to accomplish it and what switches did they use?

SmartStart & 641 Array Controller
Have 5 drives on the one controller-would like to Mirror the 1st 2 and put Win2003 Server on them and then Raid the other 3. How do I do that with HP-Smart Start?

Raid 5 causes server to shutdown
I have 3 disk Raid 5 array setup on a Windows 2003 server. The array is OS controlled ie. no Raid controller card. The Raid appears to working nicely expect when it transfers large amounts of data like copying the entire "My Documents" folder from an XP client workstation or even copying a backup file from one folder to another on the Raid it will cause the server to power off. No event is recorded in any of the event viewer folders. If only small files are handled this problem does not occur. Can anyone help me figure this one out?

RAID 5 and rebuilding
this weekend I plan on replacing the 4 SCSI hard drives that I have in my Windows 2003 Server Standard Edtion with 4 new SCSI hard drive that have the same HD space, same RPM's and hopefully the same Firmware versions. The current hard drives are in a RAID 5. My plan of attack is to replace one hard drive at a time, and have the RAID rebuild after each replacement. My question is--after I remove the current hard drive, do i restart the server before putting the new hard drive in? Or do I just take the old hard drive out and put the new one in and than reboot and pray that the rebuidl

paging file size?
This is a long one but here's my dilemma:

I have a Dell Powervault NAS appliance containing 4 x 37.2GB drives and 392MB of RAM. These drives are all dynamic volumes. They're Disk 0, 1, 2 and 3.

Disk 0 and 1 each contain two partitions - C and E. We'll get back to E partition in a bit.
The C partitions are mirrored between Disk 0 and 1

Disk 2 and 3 contain two partitions as well - D and E.
The D partition is mirrored between Disk 2 and 3.

The E partition is a RAID-5 Volume spanning across all 4 disks.

How or exactly where do I put my pagefile(s)? And what size should my pagefile(s) be???


2000 server Crashed on HP Proliant ML370
I am running 2000 advanced server on an HpProliant ML370 server, with raid 5,its giving me the blue screen when it tries to load the final screen of windows, the mesege is inaccessible boot device, check ... run chkdsk /f. is there any way i can recover using raid 5, without having to re-instal & how do i run chkdsk

Raid in Server 2003
We have 2 new servers, one with 4 SCSI HD's and the other with 5 (not hot swap unfortunately, but then I didn't order them!!). What is the best way of setting up a raid system on each keeping in mind that we need to keep capacity at a max. Each will have run Server 2003 one being a Domain Controller and the other a file server.

Running out of space on Raid 5
I have a Dell 2600 with three 36 GB SCSI 15 rpm drives with drive c: only set at 5.85 gb and d: at 61.8 gb. The Small Bus Server 2003 OS is on C: and with all the hotfix updates the drive is now full. I have moved everything to the D: drive that I can. I use this server in a small office for a SQL medical office management system.
Is there any way I can move things around? I have enough experience to have installed the original NT4 system and upgrade to 2003 almost 2 years ago but I am not by any means an IT guy...

raid 5/4 disks vs raid 10 with 4 disks
We are rebuilding a database server and need to increase performance. we were told to go to raid 10 take off the os/transaction logs to a mirrored drives and to keep the raid to 4 drives. Current setup is raid 5/4 disks, non mirrored for os. Question is,
Raid 10 with 4 drives is going to have a major increase in performance over a raid 5? or should we get more drives for the raid 10.
Creating a RAID 5 and moving it.

Is it possible to create a RAID 5 on one Adaptec SCSI card and then move those hard drives to another Adaptec SCSI card and it will recognise that it is a RAID 5?

The Adaptec SCSI cards are not identical.

Just thought I would ask.


Adding a HDD to a RAID 5

Can you add another SCSI HDD to a current RAID 5 that has 3 drives already attached?

I understand that it has to be of the same size and specs but I want to know what repurcussions it would have on the WIndows 2000 Server software.

The reason I am asking is that the C partition is getting full and I am about to upgrade to Windows 2003 Server. It is used primarily as a file server.

I need more room and wanted to know the consequences of adding another hard drive and when is the best time to do it.

Thanks in advance
Total Geek

Raid 5/XP
I just did build a raid 5 five with Windows XP with four hard drives, when I went to look how much gigabyte I have is just 458 gig instead of 640 gig. please let me know what I can do to have my 640 gig out of my raid 5?

rebuilding RAID 5 array
I have a Compaq Proliant server running Windows 2000 Server in which the slot 3, port 1, bay 0 drive failed. When the new drive arrived I inserted it into bay 0 and wasn't quite sure what procedure I must follow. So I did nothing. Today, the event log shows at the time I put in the new drive the status changed to rebuilding and then 2 hours later, the status changed to recovered and then a few minutes after that, the status changed to OK. My question is: How can I check to see that the drive is REALLY working? I thought I would have to format it and name it etc.....I'm not sure how to see it in Disk Management.....I'm not completely comfortable with reading just the event log....can you help?

RAID 5 Disk removal
I had a HD that failed and was removed from the RAID 5 configuration. The original configuration, had 6 hard drives. Four of these were dynamic for drive "A". The other drive, "B" had one dynamic drive. The "Dynamic" drive for "B" failed and was taken off line. So my question is this, "Can a drive that is currently being used for the Drive "A" mirror be switched and used for Drive "B". If so, how do I, or do I even have to move or remove the current information existing on the drive? If that answer is "Yes" is there a tool that works best in this situation? RAID Newbie

Raid Question
I'm looking at buying a snap server with 4 120 Gig drives for a total of 480 gigs. This is Raid 5 striping and parity and raid 1 mirroring.

Question, since this is a raid 5, would the total size change or would there actually be 480 gigs of available space?

Thanks. Just trying to understand how this raid stuff works.

How to Configure Hardware RAID ?
I wanted to know how to configure and Hardware RAID in Windows 2000 Platform.

Linux load raid 5 with cage
I have a server that I am trying to load with Netmax Linux Redhat version 7.3. Trying to load on a system with raid cage using raid level 5, 2120s controller and 4 Seagate 73GB SCSI drives. The problem is that cannot see the drives in the cage. Does anyone know of drivers that can be loaded on the start of the load to see the cage. Have contacted Seagate no joy here. Have searched but have found nothing. There must be a way to do this.

pagefile for RAID 5?
I have a NAS device with four 37GB drives arranged in this fashion:

All disks are Windows 2000 dynamic disks

drives 1 & 2 support a mirrored OS partition
drives 3 & 4 support a mirrored factory partition

for RAID 5, it is implemented using Windows 2000 and sits across all of the drives using equal leftover partitions.

My memory is 384MB right now.

How exactly should I set up the pagefile in this configuration and how should it be distributed?

RAID 5 failure on quantity of disk
I understand that RAID 5 either Software or Hardware which need a
minimum of 3HD and allows the dead of 1 HD.How about if I had a total
of 10HD configured as RAID5 array.How many disk can afford to die off?

I just recently installed a 3 disk RAID 5 array for a database server we are running, with an extra disk configured as a hot swap. I read somewhere that 3 disks are the minimum for RAID 5. How does this type of setup perform?

Backing up My Docs to a file server
I would like to set up a file server for backups on a few windows boxes. Basically I want to map my documents on 15 or 20 machines to this server in case something happens to these machines like a nasty virus infection.

It would also be nice to have the my documents stored locally on the machines in case something happens to the file server.

I know this cant be too hard but I've never needed to do something like this before. Could anyone point me in the right direction? TIA

RAID 5 failed redundancy
I have a W2K server. I have configure 4 SCSI hard drives as a RAID 5 using the windows utility (i have software raid solution).

One of my drives went bad, it doest seem to be recognized by the internal scsi card upon POST.

I have replaced the drive with a new one, but when i try to select repair volume its grayed out?

Any ideas would greatly be appreciated.

Raid 5 Health Status
We are currently running Raid5 with 3 hard drives. How can you check the status of the drives to make sure that one of them is not failing. In Disk Manager, it shows that the drive is Healthy. Does this mean that all three of the drives are OK? Currently our storage only has 2% free on the "D" drive. The server will just shut down on it's own. I am not sure if we have a bad hard drive or the storage is shutting the server down. Is it possible to add another drive of the same size and type to the array to add additional storage space?

Disk size for software RAID-5 setup?
I'm setting up Server 2003 for dynamic disk and tooling around with mirror/spanned volumes/raid-5 etc.

Heres the thing I know you need at least 3 physical drives for software RAID-5.
I just purchased a new 80gb drive, and have two other drives to add to the server making 3 hard drives.

The two other drives I have are relatively small ; 6 GB and 8GB.

Disk for raid:
80 GB

The problem is I think in order to create a Raid the OS needs to create an even spanned volume ie :
5 GB
5 GB
5 GB

Is this correct?

If so Im losing space allowed for my RAID -5, or is 3-5 GB spanned volume RAID-5 enough?

RAID 5 failure during on the fly expansion process !!!
i am having a 2 TB ingrasys 8400R NAS (8 X 250 GB) . out of these 8 disks, 5 have been used to create a RAID 5 volume. while doing on-the- fly expansion on this raid volume and adding HDD 6 to it, one of the HDD's (HDD 2) of the original 5 disk configuration goes bad due to power surge.the system tries to use the hotspare (HDD 7) to recover the RAID. I am not able to make out whether the power surge happened before or after the RAID expansion was complete. currently, the system is in degraded state and it shows (1,3,4,5,6,-) . this probably means that the hot spare failed to take over during the automated rebuild process.i cannot see my shares or use the volume in any manner.... anybody having a solution to this 'cos recovering the 1 TB data is utmostly critical ?

Running single boot drive with raid 5 data drive (failed raid 5)
I'm working to recover data from a failed raid 5 and think my problem is coming down to running a single bootable drive together with the raid 5 volume.

Mobo - Asus Maximus Extreme
3x WD Velociraptors using Intel Matrix for 2 raid volumes: Bootable Raid 0, Raid 5.
A new bootable single drive.

One drive failed which kills my bootable raid 0, but the data on my raid 5 should still be readable. So I grab a fresh drive and install vista, hoping to be able to see my raid 5 volume.

The problem is I have to change my bios "Configure SATA as" from RAID to IDE in order for it to see the new single drive. Of course this prevents Intel Matrix Storage Manager from setting up the RAID 5.

Is there no way to run a single bootable drive along side an Intel Matrix Storage Manager raid?

RAID-5 Enlarge Partition
I have a Win2k3 server also running Exchange2k3. There are 3x36Gb drives RAID-5 (hardware) and partitioned to c: d: and e:

The c: (8GB) holds system and a few apps. d: (30Gb) holds data, e: (29Gb) exchange.

My problem is that the c: drive has less than 500Mb of space. Not enough to install SP2 and rapidly running out with each update from MS!

I've been reading around some posts in the forum about how to enlarge a partition, but they don't often refer to RAID-5 partitions. I have 9Gb free on d: and 12Gb free on e:.

Is there a way to enlarge my c: drive that is relativley painless and ideally cost free (small charity, precious little cash)?

I did not set up this server and it's a bit annoying that apps are also installed on the d: and e: drives (i.e. not all in the same place), I've read that ideally the c: drive only holds the windows system, but I'm wary of putting too many more apps on the exchange partition or into the data partition. Anyone any thoughts on that?

I have space for another 3 drives, so in theory could just buy another 3 drives RAID-5 and shift all the data/exchange onto these and leave the original 3 drives for system and apps (oh how I wish!) but cash is the issue there and I still have too little space on the c: drive. Can you have 2x RAID-5 sets together simultaneously? Or would it have to be one big fat hairy RAID-5?

Raid Failure and Recovery
I have an older server that I am running Windows 2003 and exchange 2003. Last night I had 2 of my 5 hard drives fail on me. I am running a raid 5 each of the hard drives are 9.1 GB.

I found a source for replacing the hard drives but I am wondering if it is possible for the server to rebuild the 2 failed drives? I am also wondering what kind of steps would be involved, and things that I should look out for? At this point the Server will not boot, it comes to the message that I need to replace the drive(s) in bank 0 and 4.

In the meantime I am going to setup Windows 2003 and Exchange 2003 on a spare PC that I have laying around so that we can recieve emails while I work on recovery.

Any insight into this situation would be greatly appreciated. I am going post an alternate email address for people to respond to seeing that my current server is dead.

Related Links:

Solution of Raid 5 Rebuilding:

Rebuild Your Raid 5 Array By Using Getway Raid Recovery Software

Raid Knowledge:

Raid level 0
Raid level 5
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