Primarily questions about disk storage, sometimes questions about application storage or cloud storage. Always questions about storing data.

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5
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0answers
447 views

Using ZFS head node as database server?

I'm using a dual-head ZFS-backed NAS for high availability cluster shared storage, based on Nexenta's recommended architecture as seen here: The disks in 1 JBOD will store the database files for a ...
4
votes
0answers
513 views

Amazon RDS Instance slowly losing free diskspace

A while back the server running my instance had 20GB of EBS storage. It then started getting disk storage errors, so I increased it to 40GB. Then again, storage missing errors so I increased again to ...
3
votes
0answers
43 views

SAS expander or better controller?

In the past, servers I've put together have all had 8 or fewer disks, so I've not had to give the storage controller much thought - a standard controller like the P440ar (my experience is with HP) ...
3
votes
0answers
147 views

VMware ESXi and Intel DC3700 (NVMe) Poor Performance Even With Intel's Driver

I'm running VMware ESXi 6.0.0 with the Intel DC3700 800GB. My VM is running Windows 10 x64 with 8GB RAM and 4CPU Cores. The entire VM is 32GB and sits on the SSD. I'm using CrystalDiskMark at 1GiB ...
3
votes
0answers
73 views

S3 + Cloudflare vs S3 + 2 Web Server + Cloudflate

Currently, I run two websites and each site own it own big server. Currently, all of those two sites has roughly 300GB of images. Its grow rate is 15GB of images per month. I know that eventually, one ...
2
votes
0answers
23 views

stat() mtime is in the past, despite fsync

This might be a bit esoteric, but I've got an odd sort of a problem with stat(). Specifically - on a Linux system, with Isilon storage NFS mounted. I have a process that is getting time differences ...
2
votes
0answers
21 views

Isilon 'enabling_writes' gets stuck during failover

I've been testing failover functionality on a new Isilon. Running OneFS 8.0.0 (A .0 release, but .1 is on the install queue). Part of this is performing a failover operation, following a procedure ...
2
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0answers
86 views

Dell Data Collector Manager not showing Storage Center

In one of our environments, Dell Enterprise Manager Data Collector doesn't seem to connect to my Storage Centre. The logs shows that "Storage Centre Controller Cannot connect to the configured ...
2
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0answers
101 views

Expanding JBOD with SAS extenders

My project is expanding 24-HDD ZFS box by adding 45-drive box with option to add another 45-drive box later (all are JBODs). Host box (24 HDDs) is Supermicro with single port expander backplane and ...
2
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0answers
67 views

Maximum size of a virtual pool in SCVMM 2012R2

I have a Windows Server 2012 R2 running SCVMM 2012 R2 and an over-committed virtual storage pool. In Server Manager the capacity of this storage pool is 128TB which translates to 140TiB which makes ...
2
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0answers
201 views

Infiniband link is at 4X SDR with DDR HCAs; has anyone seen this before?

I've recently upgraded my Infiniband HCAs from SDR to DDR, however upon upgrading, it has not improved the link speed at all. Receiving the following output from 'iblinkinfo': CA: ip-san-1-au3a ...
2
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0answers
403 views

Issue deleting files from a NetApp Windows Share

At work we have a NetApp Windows Share setup. I browse with Windows Explorer to a folder which contained thousands of text files. I then select multiple files at the same time and delete the files. ...
2
votes
0answers
259 views

Shrinking a volume and extending another in dynamic disk

I have a test environment where I converted a disk to dynamic, shrunk a volume, and then expanded another all on the same disk. The result is that disk management in Windows Server 2008 R2 shows two ...
2
votes
0answers
206 views

Partition block size different from device's and stacked LVM volumes ones

I have a pair of HP ML350 G6 servers with LSI MegaRAID 9266-4i+CacheVault driving Supermicro CSE836E16 enclosures via SAS bracket, filled with WD RE 3TB SATA drives. On these are configured a RAID10 ...
2
votes
0answers
110 views

Is it possible to dynamically set the upload_store value for nginx upload modue?

I have a lot of hard drives in my server and I want to upload files to them. Since it is overhead to upload a file to one drive and then move it to another, I would like to directly upload the file to ...
2
votes
0answers
398 views

How do I prevent graphite from filling up my primary disk on ubuntu in EC2?

I am running graphite (per reading this blog by Etsy) on an Ubuntu 10.10 linux install on EC2. Basically it works, except that my server is constantly exhausting reported free disk space. I say ...
2
votes
0answers
4k views

XenServer 5.5 local storage problem

I have the following problem with a Citrix XenServer 5.5. I had to physically move the host, so I shut down all machines via console: xe vm-shutdown force=true vm=my-machine-uuis-s After that I ...
1
vote
0answers
15 views

Samba Share on remote machine

I'm with the following environment: I have 3 computers: A machine working as a storage (Ubuntu 14.04) (Khan), a Samba Server (Ubuntu 14.04 with Samba 4.3.9 with a NT4-like Domain) (Vader) and a ...
1
vote
0answers
16 views

IBM X Storage X3650m3 for SGDEVODB02

Error showing some of the monitored parameters are abnormal in my IBM storage X3650m3 but it showing green color so i dont know whats the problem here? Can any one please help? Update: In IBM ...
1
vote
0answers
28 views

How to emulate or make multiple iSCSI software initiator IQNs on RHEL RedHat 7?

I have 2 Ethernet HBAs with 2 ports each, all 4 ports are connected to iSCSI targets and I can login using iscsiadm command. But the iSCSI initiator name (IQN) for all 4 ports is one, in /etc/iscsi/...
1
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0answers
35 views

MegaRAID Rebuild required after PdOffline + PdOnline?

In a RAID6 array with 12 disks I have taken a disk offline to flash new firmware, then brought it online again: MegaCli64 -PdOffline -PhysDrv[8:0] -a0 MegaCli64 -PdFwDownload -PhysDrv[8:0] -f ...
1
vote
0answers
70 views

Changing content storage path for Azure pack websites

I'm wondering if it's possible to change the content storage location within Windows Azure pack websites. I want to change my existing cloud's storage from a standalone Windows file server to a Linux ...
1
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0answers
21 views

Understanding VMFS storage usage

please help me understand something regarding used and available space on a datastore holding thin provisioned vmdk files. Im having an ESX 4.1 U3 VMFS 3.48 datastore called "storage1". This is 1....
1
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0answers
240 views

fdisk and parted won't work on a USB stick with Fedora 23 alpha 2 x86_64

So I burned a Fedora 23 alpha 2 on a 16GB USB stick through dd if=path/to/fedora.iso of=/dev/usb_device bs=512 I used bs=512 because the sectors on the stick are 512 bytes. Opening the stick in ...
1
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0answers
36 views

dmcache - is removing cache device without suspending safe?

I'm using plain dmcache for SSD cache - unmount procedure goes this way: umount fs suspend cache device remove cache device close lvm close LUKS shutdown However sometimes dmsetup doesn't allow me ...
1
vote
0answers
87 views

HP MSL2024 not auto changing tapes using Ultrabac 9.2.2

I am using Ultrabac 9.2.2 to run backup sets to a one drive HP MSL2024 tape library. It's currently connected via SAS 3Gbs to a HP Proliant DL380G6 running Server 2008 R2. I have the drivers from HP ...
1
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0answers
139 views

HP Command View: Could not find authenticator for Security Domain

I have some HP EVA storage arrays. They are monitored via Command View - the HP management product. Of 8 management servers, a grand total of one will not let me log in using 'domain' credentials - ...
1
vote
0answers
405 views

Most efficient way to setup massive high-availability storage in Azure to work with multiple VMs?

I'm looking into various options for setting up massive high-availability storage in Windows Azure, to use together with my Azure VMs. The VMs need to be able to work with the storage as if were a ...
1
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0answers
102 views

Mapping LUNs to drive slots on a MSA2312i?

I'm working with an older MSA2312i. I really need map the current LUN configuration to associated slots via the SSH so I can make it scriptable. Is there a ready way to do so? I would have thought a ...
1
vote
0answers
952 views

windows2012 failover cluster + storage. Considerations

We plan to build a failover storage with Windows2012r2. There will be 2 or 3 physical machines with 2 virtual machines on each server. One virtual machine building a failover, second one being storage ...
1
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0answers
414 views

Storage of large number of files for a web application

There's an old discussion whether and application should store its files in a database or in the filesystem. Both have their pros and cons. I want to know if there's any specific system for ...
1
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0answers
701 views

Access iomega StorCenter ix4-200d dump utility from SSH

My employer is in the process of returning a broken HDD to Lenovo/iomega. Unfortunately, before we can send it in, they require us to do a complete dump of the system's current state. Normally, I ...
1
vote
0answers
106 views

3ware 9500S-4LP raid-1 rebuild failed

After replacment of 2 failed drives on 3ware card i got this: Ctl Model (V)Ports Drives Units NotOpt RRate VRate BBU ----------------------------------------------------------------...
1
vote
0answers
594 views

ESXi 5.1 local datastore no longer accessable

I'm running ESXi and just recently rebuilt a raid array, and now an existing local datastore is no longer accessable in ESXi. The details: Original Configuration: 1x usb drive (on the backplane) ...
1
vote
0answers
305 views

Solaris x86 11.1 and qlt driver — only 3/4 ports attach

I'm using the QLogic QLE2564 4-port 8Gb HBA. The problem I have is that when I attach the qlt target mode driver to the card, only 3/4 ports attach the driver. ffffc10006854e58 pciex1077,2532, ...
1
vote
0answers
150 views

Virtual linux drive on a NAS - recommendations

I have a Linux server currently running under a Microsoft Virtual Machine. I have it set up so that the storage drive is set up as a secondary virtual disk. I need to move this machine to a new box ...
1
vote
0answers
111 views

Windows Storage Server 2008 & Windows 7 sharing acting unpredictably

Configuration: Windows Server 2008 r2 ADUC, Windows Storage Server 2008, Windows 7 Professional x86 & x64 Scenario: We've been using Windows Storage Server on a NAS device for the last year or ...
1
vote
0answers
81 views

Backup Strategy ideas needed for awkward setup

We run a business with our offices in Nottingham in the UK. We keep our business critical data on a set of servers in Manchester UK. Although the two locations are not half a world away from one ...
1
vote
0answers
479 views

Celerra: zoning done to data mover

I have a small confusion-while zoning to data mover, wwn zoning in preferred. Which should be Node 50060160c1e10d7d -please correct me if I am wrong. Because in my environment I see it is zoned to SP ...
1
vote
0answers
134 views

SQL Server Replication Agent priority

Every hour a server replicates SQL server data with some external web server. During this time, which takes about 2-5minutes, the database seriously slows down. Colleagues, which work with the front ...
0
votes
0answers
14 views

Linux Ubuntu 16.04.1 UFS: Warnings in Dmsg and Console. ZFS

Why am I getting these warnings on my ZFS disks? ALl disks but sda are ZFS I'm guessing its nothing to worry about though. OS: Ubuntu 16.04.1 LTS, no external PPAs or repos Whole DMesg Warning ...
0
votes
0answers
9 views

hus130 get configuration report by hitachi command suite 8 interface or element manager

I have a question about Hitachi and its products. I have Command Suite 8 and several storage systems, such as VSP, VSP G1000, USP_V and HUS130. In VSP systems i can download a configuration report by ...
0
votes
0answers
40 views

Why is the free space in a storage pool less than the capacity?

I'm trying to set up a new storage pool using 2 physical disks in my system. The sceneario is as follows: I have 2x 3TB HDDS in the machine. The machine's BIOS doesn't support booting from GPT :( ...
0
votes
0answers
42 views

Need disk UUIDs in KVM guests

I'm porting a virtual server cluster solution from ESX to KVM (libvirt) and am running into a bit of trouble. In order for our propietary volume manager to label and slice the virtual disks, we had to ...
0
votes
0answers
55 views

kvm virtualized Windows get low disk performances

Disclaimer This is indeed a continuation of this thread. I've opened a new question as the target has slowly shifted, therefore I think was good to open a new post. I will merge back if required. ...
0
votes
0answers
26 views

How do mirrored virtual disks get distributed in a 4 disk storage pool?

I have a Windows 2012 R2 server with 4 3TB drives. I had to upgrade after one of my JBOD disks failed and luckily I had backups to recover from my storage pool of 2-3TB and 2-1.5TB drives with 4 ...
0
votes
0answers
16 views

Add more Drives to a RAID controller using a seperate\another SAS expander or Controller?

I have a custom build server. It currently has an LSI MegaRAID LSI00295 (9266-8i SGL) PCI-Express 2.0 x8 Low Profile SATA / SAS RAID Controller configured with 8 3TB drive in RAID 6. Can I add more ...
0
votes
0answers
30 views

Confusion on how to hotswap dm-x device in software raid

Below is the dump when I do lsblk cat /proc/mdstat lmsetup -ls. So sde is dying and I would like to replace it. What i'm confused is, in lsblk it shows sde is part of md3 (software raid). but when I ...
0
votes
0answers
34 views

nas4free partitioning os drive [Nas4free]

I tried the nas4free forums but it doesn't seem that responsive so I am going to try my luck here. version: 9.2.0.1 - Shigawire (revision 972) My boot drive is in raid 1. One of the hdd is ...
0
votes
0answers
14 views

Choosing Block Size and I/O oustanding For Benchmarking Storage System

I have two quenstions. What is the recommended block size for benchmark a storage system, as I know many people would use 4K for random test but for sequential I am not sure whether to use 128K or ...