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The LUN in VMware is 42 TB while the Lefthand shows only 40 TB.<br />
So I got confused here, why there is extra 2 TB in capacity ?<br />
<br />
Do I need to break this LUN into 4x 10 TB to make it better performance ?
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The LUN in VMware is 42 TB while the Lefthand shows only 40 TB.
So I got confused here, why there is extra 2 TB in capacity ?

Do I need to break this LUN into 4x 10 TB to make it better performance ?

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Luciano,<br />
<br />
Does this means for the iSCSI LUN, do I carve the 4x 10 TB on top of the 40 TB RAID 6 group ?
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Luciano,

Does this means for the iSCSI LUN, do I carve the 4x 10 TB on top of the 40 TB RAID 6 group ?

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Ok, I will resize it to max. 10 TB per VMFS datastore.
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Ok, I will resize it to max. 10 TB per VMFS datastore.

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<div class="content wysiwyg-content">
Hi All,<br />
<br />
Can anyone here please explain as to why there is disk space discrepancy in between the HPE Lefthand P4530 and the VMFS data store in VCenter server?<br />
<br />
See the below screenshot:<br />
<a href="https://filedb.experts-exchange.com/incoming/2017/05_w18/1160254/Discrepancy.jpg" target="_blank" title="Discrepancy (114 KB)"><img alt="Discrepancy" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2017/05_w18/800_1160254/Discrepancy.jpg" /></a>
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Discrepancy.jpg

Hi All,

Can anyone here please explain as to why there is disk space discrepancy in between the HPE Lefthand P4530 and the VMFS data store in VCenter server?

See the below screenshot:


Discrepancy in HPE Lefthand LUN and VMFS datastore ?

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Server Hardware

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.

VMware

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.