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4

I think you're asking for a way to turn your Dell Equallogic storage into shared network storage; e.g. converting SAN to NAS. The Equallogic SAN is block-only, so your easiest solution is to configure a server to interface with the Equallogic device over iSCSI. Use that server to present the block storage to the rest of your network as a network filesystem. ...


0

Looks like that controller is getting old, do you know what version the firmware is? I couldn't find any docs for it on the LSI site. I don't know if it's applicable but I did find this similar problem on IBM site: http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=migr-5075096 Update the LSI SAS Controller BIOS and firmware package to version ...


1

Seems that it's a replication issue as you have replicated the storage , not sure just verify if you have any other host and attache the storage initiator there and check.


1

You don't provide the Windows version that you will use. I really recommend using 2012 R2 to get all new feature from NTFS, like hot repair. Your 3 nightmares will be: -Fragmentation -Time taken to do a chkdsk. The time of it is based on number of files, not size. -backup time If you are at least on Windows 2012, you should look at ReFS. This new file ...


1

Some years ago I started writing a storage system similar to ceph. Then I discovered ceph and what they had worked better so I dumped my development. During the development process I asked a similar question to yours but on SA I did a lot of calculation on handling lots of small files and found that naming files (assuming they can be anything) by uuid and ...


0

If the steps you listed do not clear up the issue, you can also try "raidtool -P" (purges caches). This type of issue is fairly rare, but is usually indicative of controller/hardware problems when the issue continues to return like this. I really wouldn't recommend facing this issue on your own without assistance from Equallogic support, but seeing as ...


0

Yes, you usually can connect more disks than the number of ports in your controller (see the other answer's link for information on what an 'expander' is). Of course, the performance will be limited to what those 4/8 ports can support. For instance, check the Supermicro SC418 chassis. The backplane does not have 24 ports but a complex backplane that will ...


1

This depends on your server, the backplane and whether an expander is involved. If you are connecting to the disks without a backplane or expander solution, you will need the 8i card and SAS breakout cables. Edit: You don't have an expander backplane, so you'll need an 8i (2 x SFF-8087 ports) controller and two SAS breakout cables. Please see: How ...


0

I found the right parameter "reserved_for_root{ 0 }" 50000 10000 50000 ext4 \ $defaultignore{ } $lvmok{ } \ method{ lvm } format{ } \ lv_name{ root } \ use_filesystem{ } reserved_for_root{ 0 } filesystem{ ext4 } mountpoint{ / }


0

I'm pretty sure that you're correct - what RAID scrubbing does is read back your stripes and recalculate your checksums, and in this way check for media errors. So if your array is already handling it, then it's moot. Perhaps to the point where if the NetApp thinks it's got a RAID-0, I'm not sure if it actually can be doing anything - there's nothing ...


0

You can use good old WMI: Get-WmiObject -Namespace "root\Microsoft\Windows\Storage\providers_v2" -Class "MSFT_StorageSubSystemToMaskingSet" Not sure what bit of information you are after but this should get you started.


2

I'd probably just compare fdisk -l and lsscsi. On my systems, I tend to see more output in fdisk, as lsscsi doesn't account for all of the block devices in use on the servers (ZFS zpool devices, etc.) Similar situation for blkid.


1

Apparently, if you set cache=NONE for a disk image file on any host filesystem that does not support Direct IO, Virt-Manager will currently give a not very helpful error message saying "Something something... Invalid Argument" and refuse to start the Guest VM. One example of such a filesystem --that does not support Direct IO-- is the tmpfs. Another such ...


2

You're expecting a JBOD, but it appears that this might be set up as a SAN, and you're seeing LUNs. You should check the 6140s themselves.


4

The contents of /proc/diskstats, and the output of 'iostat' on it's own, both show the cumulative stats since the counters were reset (probably since the machine booted). If your webserver is serving primarily HTML and simple SQL, it's very likely it's mostly coming out of memory caches, and so very little is hitting the disk for a read. On the other hand, ...


2

For the amount of data, see iostat: [root@example ~]# iostat -m Linux 2.6.32-431.11.2.el6.x86_64 (example.com) 08/08/2014 _x86_64_ (2 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 0.38 0.00 4.10 0.36 0.10 95.07 Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn sda 0.95 ...


0

Have you looked at the various homedir styles on Netapp? In my shop, we have a couple of volumes that are shared out locked to just the admins, and inside them are subdirectories for each users' homedir. If you map or browse to \\filer\username$\, you are actually seeing inside that subdirectory, and when we provision home directories, we make the user the ...


1

If you're running powershell 4.0 check our Grant/Revoke-SMBShareAccess http://technet.microsoft.com/en-us/library/jj635705.aspx However, PS4 requires a Win8.1 or Server2012 R2 or later client OS to run. Earlier versions of PS did not have native cmdlets for share ACL modification. I've had good luck with SUBINACL.EXE you can download here ...


1

Is it possible to do it in a standalone server Yes, but you don't talk about performance/load requirements, that said I'd pop in a bit more memory if you can, it's cheap enough these days.


1

When you see disk space being consumed but the files consuming it are not visible in the file system, it usually means the files are being kept open by a running process. The space will be freed once the process is terminated. Rebooting is one way of terminating processes, which is why the space is freed on reboot. You can use lsof to look for processes ...


0

Maybe try a basic approach of this issue : satisfy to the VMware High Availability requirements : All hosts must be licensed for vSphere HA (Licensing by features), You need at least two hosts in the cluster, All hosts VMKernel Management Network need to be configured with static IP addresses, There should be at least one management network in common among ...


3

It may not matter, depending on what your goals are... there are gray areas between both definitions - RAID controller and Host-Bus Adapter (HBA). Understand that most high-quality servers have embedded RAID controllers today, so the need to select and shop for a separate RAID card has diminished as systems become more integrated... RAID controller cards ...


4

HBA: Device that plugs into your computer's bus and allows it to talk to hard drives. It may or may not provide RAID, acceleration, or other such features. RAID controller: Device that provides RAID support, usually with hardware acceleration. It may or may not connect to your computer's bus. It may, for example, connect to a SATA port.


7

HBA just means 'host bus adapter', so it's anything that lets you connect to an external bus (although usually the term is applied to a something that lets you connect storage). You might put one in to fit an external tape drive, or a SAN storage array. Usually, as in this case, it means the card isn't that intelligent. It supports only the simple types of ...



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