Questions tagged [storage]

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

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11 views

Can the system (boot) volume be the source volume in a Storage Replica?

As the title says, I'd like to know if the system volume (the volume the O/S boots from) can be the source volume in a Storage Replica. Background: We have two identical (hardware-wise) servers. ...
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1answer
127 views

Bad Linux storage performance, in comparison with Windows on the same machine

(the question was reformulated, I think it needed to be more structured) We have a Proxmox VE on Dell PowerEdge R610 gen 8 system. The platform is old, but we use it for particular S/W which is well ...
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1answer
47 views

Kubernetes PV/PVC with Ceph or an alternative?

Since I don't have direct access to the storage, but want to run Kubernetes in my own environment: Which software (on a VM) do I use to provide PV/PVC via the file system? I have heard about Ceph. ...
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68 views

Method for creating accessible, compressed and deduplicated long-term archives

I am looking for a good method of archiving larger amounts of data (multiple 10 GB of mixed data, partially containing duplicates) over a longer time frame. The data should be stored as efficiently as ...
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15 views

Can Smart Storage Battery disable access to server?

I have a Proliant DL360 Gen9 server that I have to restart every 5-7 days because I loose access to VMware and to all virtual machines. By this, I mean that I cannot SSH to the virtual machines or ...
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1answer
19 views

how to check the IOPS when I have multiple disks attached to an Azure VM

I have considered Azure Standard_E16s_V3 vm and attached two premium disks (p30 , 1024 GB & 5000 IOPS). How can I calculate the average IOPS considering both disks. This is to check the possible ...
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1answer
33 views

How to Change Cloud API access scopes on GCP Compute Engine with out stopping the Instance

I'm using gcsfuse inside Google Compute Engine. I mounted a folder with cloud storage bucket but, unable to create any file inside of it: touch t1 with an error: touch: cannot touch 't1': Input/...
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1answer
43 views

Mounting multiple NFS exports to the same client directory

I am running into an issue with NFS that I am not sure how to solve. I have spent a bit of time trying to find an answer but was not successful. I am ultimately trying to achieve the below setup ...
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1answer
31 views

What's the difference between 10k/15k SAS HDDs and SATA SSDs?

What is the rule of thumb in performance characteristics and differences between 10k / 15k revolutions per minute (RPM) Serial Attached Storage (SAS) hard disc drives (HDDs), versus Serial ATA (SATA) ...
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1answer
107 views

Pod stuck on ContainerCreating due to FailedMount

I have a sporadic issue specifically with big volumes (~2TB) where the pod in my Kubernetes cluster is stuck on "ContainerCreating" with the reason : failed to mount the volume as "xfs", it already ...
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31 views

How to measure DPWD on VMware?

I want to know the amount of data read and especially written per day, per week, per month. But how to achieve this on VMware? The disk which are integrated differ. E.g. the disks are in SANs, NASs ...
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1answer
87 views

RAID 5 disk failure?

I know theoretically how RAID 5 works. In one of my system one disk failure happened on a system with RAID 5. It will take a day to get it replaced. I understand once disk is replace, data will be ...
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1answer
38 views

Export 20TB from Amazon S3

I have recently inherited 20TB of data after a company takeover. The files are currently stored on an Amazon S3 account which is due to close. What would be the most cost effective method of ...
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28 views

Areca 1882 not showing all enclosure drives

I have an Areca 1882 connected to a PCIe 16x slot on an ASUS server board. I have attached two of the mini-SAS cables in the back of the card to an internal-external mini-SAS adapter card, then ran ...
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1answer
68 views

S.M.A.R.T. Attributes from OWC Mercury Rack Pro

I'm having difficulty getting SMART Attributes from drives in an OWC Mercury Rack Pro. I can successfully get all the drive info, but I get nothing past the START OF READ SMART DATA SECTION. It is ...
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25 views

ceph pg dump report zero PG_SUM for newly added osd

i'm currently using ceph mimic version. I added some osd to the cluster. but unfortunately they did not have any PG so they could not store any object. any idea?
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16 views

ReclaiMe takes forever. Need a faster solution

Arrgh! I had a 4-drive RAID-5 array running nicely on an Intel DX58so motherboard until one of the drives gave up. No problem, right? That is why we use RAID-5, right? Instead of alerting me and ...
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14 views

How to force spare disk activation on HP Storage Administrator? (Spare did not activate)

I have a HP Storage Adminstrator on a machine, B120i controller. The drive failed today, and the spare did not activate. It is set to Predictive mode - how can I force it replace the failed drive?
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71 views

Nextcloud Local “External Storage” Restrictions

I have a server with a software stack including a number of Apache run applications (~4), NextCloud being one of them. This will be a client run machine, where they control the "Admin" user. I want ...
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1answer
107 views

zpool stuck in resilvering loop

I have the following zpool: NAME STATE READ WRITE CKSUM zfspool ONLINE 0 0 0 mirror-0 ONLINE 0 0 ...
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2answers
129 views

Will I be able to expand Synology later without losing data with regular RAID

I just got Synology 918+ and bought 2x10 TB Hard drives. Before I set up, I just want to avoid getting into trouble in the future. I don't want to use SHR (Synology hybrid raid) because of several ...
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1answer
125 views

Trying to speed up copying some Sql data files between two VM Data Disks

I need to move my Sql Server data from the existing Azure data disk to a new one. When I try and copy the existing files from the 'old' Disk over to the 'new' Disk it says it will take about 10 1/2 ...
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1answer
70 views

Windows Disk Spanning : is there a 2TB limit when trying to span 2x 1TB disks?

I'm trying to create a 2TB data disk for my Azure VM (classic; Standard A4 (8 Cores, 14 GiB memory)). It's not allowing me -> saying the largest size is 1TB. So I thought I might try and create 2x ...
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1answer
68 views

HP ProLiant ML350 Gen9 - Replace SFF cage with LFF cage to use specific HDD

Recently, I was given the task to replace the SFF HDDs in a HP ProLiant ML350 Gen9 (PN: 776973-425, tower version), and use LFF HDDs instead. The HDDs are 4TB SAS 7.2K LFF SC DS HDD (PN: 872487-B21). ...
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18 views

Migrate Azure Web App Custom Logs to Azure Storage Account

My team is currently creating an Azure Web App (.NET framework). The app creates custom .log files for the application and stores them on the D:\ drive. The log files can get pretty large. I believe ...
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1answer
42 views

Proper way of using VMware datastore extents

In our VMware infrastructure, we have a number of large Windows file servers, with provisioned disk sizes ranging between 25TB and 35TB. Their individual disks are rarely larger than 4TB, with many ...
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2answers
80 views

Windows Server 2019 VM clustering shared storage [closed]

Spec: Windows 10 host, 2 Windows Server 2019 VMS's in a cluster setup. The cluster is setup and fully functional except for the storage. However; I am unable to understand if this scenario is ...
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4answers
619 views

Expose Fileserver (SMB) over WEB / HTTP(S) Interface [closed]

I have a Windows Fileserver (SMB), for internal storage. I'm looking for a way to add a Web-interface to expose the fileserver over HTTPS. The requirements are: Accessible over HTTPS in a standard ...
2
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1answer
33 views

zpool status shows drives are defaulted, but they seem okay. Can I add them back?

zpool status is reporting defaulted drives. But they actually appear to be okay. Is it possible to add them back? $ dev/disk# zpool status -v pool: darkpool state: DEGRADED status: One or more ...
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1answer
74 views

NFS server and client are working but data is not on the server?

I have an inhouse Kubernetes cluster running on bare-metal and it consists of 5 nodes (1 master and 4 workers). I set up an NFS server on the master natively and launched the nfs-client in the K8s to ...
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2answers
44 views

New large HDD on Ubuntu server

I am running Ubuntu 18.04 on a server which at present only uses the system SSD for file storage. I have now connected a SATA HDD of 16TB which fdisk recognises at dev/sda as 14.6TiB. System disk ...
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12 views

Time spent reading disk is confusingly big

As stated in documentation, the fourth field in /proc/diskstats is: Field 4 -- # of milliseconds spent reading This is the total number of milliseconds spent by all reads (as measured from ...
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1answer
29 views

How to test and evaluate performent of a storage system? Compare between NFS and GlusterFS?

I have an exercise at school about the title question,I have google search for couple of hours but I'm not found anythings useful. I only know that when come to HA, GlusterFS remove the single point ...
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1answer
55 views

Unable to mount NFS to a container

I need to set up an NFS server for my k8s cluster. I can set it up and mount it to a client running on bare-metal ubuntu but when I try to mount the NFS to a container (the client is an ubuntu 18.04 ...
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1answer
40 views

Dynamic PVC/storage class encryption in GCP

I'm trying to create PVC which has the storage class encrypted. These PVCs are created dynamically. As per this link- https://kubernetes.io/docs/concepts/storage/storage-classes/#gce-pd for AWS EBS, ...
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2answers
666 views

NFS-Client Provisioner stucked at ContainerCreating

I followed this(https://matthewpalmer.net/kubernetes-app-developer/articles/kubernetes-volumes-example-nfs-persistent-volume.html) link and installed an NFS server in my cluster with blow yaml file: ...
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1answer
79 views

Directories are full, with 200+GB free on disk that is partitioned

I am running Fedora 30 (new to this distro), and can't seem to use all the available space on an encrypted partition. There are only two partitions of sda for a total of 300GB, 1 with 1GB and 2 299GB, ...
2
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2answers
712 views

NFS server on a Kubernetes node?

We have an in house Kubernetes cluster running on bare-metal, can I set up an NFS server on one of the nodes (either worker or master) in the cluster? If yes do I need to change anything in the ...
67
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13answers
16k views

SSD or HDD for server

Issue I have read many discussions about storage, and whether SSDs or classic HDDs are better. I am quite confused. HDDs are still quite preferred, but why? Which is better for active storage? For ...
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1answer
27 views

RAID upgrade - Can I power down individual disks to 'hot upgrade' an array?

I have a 4 disk RAID6 on an HP P420i (w/FBWC + battery module) that I need to upgrade with larger disks. I was going to replace each disk in turn then wait for array rebuild until all 4 were replaced....
2
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1answer
235 views

How to accelerate metadata (getattr) requests on an NFS file server for fast locally-cached reads?

We have a storage server with a 12 disk RAID-6 pool of 100 TB. It is used by several client compute nodes via NFS, mostly running deep learning training (lots of images ~100 KB, loaded in random order)...
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2answers
98 views

How to reassign S2D NVME SSD as cache role

We are using Hyper-V on a S2D cluster of three nodes. Each node has two NVME SSD's and 8x SAS 1.2TB drives. The NVME SSD's are currently assigned in the performance Tier and the 8 drives are assigned ...
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1answer
255 views

What is the current status of pNFS on Ubuntu?

There is a lot of confusing information out there on pNFS, and I have some very simple questions: How can I check if it is running/enabled/active on my system? Is pNFS widely available today or still ...
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2answers
107 views

Should I bond iSCSI network connections?

I'm setting up some iSCSI storage (Lenovo) along with a physical server running RHEL7. The server has 2 NICs for the main LAN (bonded) and 2 NICs for the iSCSI network. The Lenovo storage has 4 ports ...
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1answer
175 views

What is the minimum web storage when creating a 500 user email accounts? [duplicate]

I have a client that needs a website and an email server. Web hosting provider nowadays offers a package of domain registration, web hosting and email hosting. Now, my client needs to create at least ...
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3answers
111 views

How to avoid downtime when a need arises to check & fix a huge filesystem

I'm researching for ways to build and run a huge storage server (must be running Linux) where for all data arrays I can run consistency check and fix, while the usual applications using the arrays (...
1
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1answer
131 views

256TB, GPT disk, I can, but should I?

I just learned (thank you Kevh) that a GPT drive on Windows can hold 256TB Unlike MBR that limits each partition to only 2TB in size, each partition in GPT can hold up to 2^64 blocks in length (...
2
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1answer
71 views

12G SAS Expander with 6G disks limiting speed?

I'm building a server with 24 SATA III disks connected to a Chenbro 12G SAS expander on a 12G SAS HBA (LSI 9300) with a single SFF-8643 cable. Aggregate write speed is slower than I hoped for, and I'...
18
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2answers
2k views

Newly created XFS filesystem shows 78 GB used

We have a 12 TB RAID 6 array which is supposed to be set up as a single partition with an XFS file system. On creating the new file system, it says it has 78 GB in use, but there are no files on ...
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1answer
57 views

K8S Azure Storage Account file share mount issue with ingress?

have a Kubernetes cluster setup in Azure with AKS and I am running a simple apache deployment, for the purpose of this post httpd:2.4. For assets storage I have a File Share mounted from an Azure ...

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