- How to Manipulate IP Addresses
Setting and working with IP addresses can be very complicated even for advanced users. Read through some basic guidelines of how IP addresses work and how this can help you navigate your networking and your NAS.English
- How to Set Up a Shared Folder
Create and customize folders on your NAS that can be accessed locally or remotely. Control user access as well as adjust various other settings.English
- How to Take Advantage of Auto Module Installation
Browse the latest modules online, install and upgrade them through the UI directly from the Thecus server, and activate them all in the same place.English
- How to Use the Thecus Setup Wizard
Discover NAS on your local network and perform some basic setup steps including RAID creation and assigning IP addresses.English
- The basics of Thecus Firmware V5
Learn more about the brand new Firmware V5 for Thecus NAS. This video focus on UI improvements, user-friendliness features, and the new AMI (Auto Module Installation) which allows you to customize your NAS in a few clics. Live video starts at 2:18English
Connecting to your NAS
- How to Access a Shared Folder Locally with AFP (OS X)
Connect to your NAS from within OS X for straightforward file copying within a familiar environment. AFP allows you to access your NAS as easily as an external hard drive.English
- How to Access a Shared Folder Locally with NFS (OS X)
Connect to your NAS with this Linux protocol from OS X. NFS allows you to access your NAS as easily as an external hard drive.English
- How to Access a Shared Folder Locally with Samba (Windows/OS X)
Connect to your NAS with this widely used protocol. SMB allows you to access your NAS as easily as an external hard drive.English
- How to Access the Thecus User Interface, Web Disk, and Photo Server
A few basic steps on how to connect to your NAS through your web browser.English
- How to Connect to an iSCSI Target Using Windows
Treat your NAS as an internal disk in your computer and transfer files faster than Samba, AFP, or NFS with this protocol. Read the "How to Create an iSCSI Target on Thecus NAS" guide to learn how to create an iSCSI partition.English
- How to Create an iSCSI Target on Thecus NAS
Treat your NAS as an internal disk in your computer and transfer files faster than Samba, AFP, or NFS with this protocol. Read the " How to Connect to an iSCSI Target Using Windows " guide to learn how to connect to your new iSCSI partition.English
- How to use the Thecus Dashboard: Monitoring Your NAS Wirelessly from iPhones and iPads
View a number of important status updates from your NAS and manage users privileges and Internet protocols from anywhere in the world.English
- How to use ThecusShare™: Downloading, streaming, and uploading from iPhones and iPads
Download or stream videos, photos, and music from your NAS and upload photos and videos to your NAS right from your iPhone or iPad.English
- TwonkyMedia Module: How to Connect Your NAS to your TV
Watch movies, view photos, and play music from your NAS right on your living room TV.English
Backup and Data Security
- How to Add Encryption to a RAID Volume on Thecus NAS
Create a physical USB "Key" that must be inserted into the NAS's USB port to access the encrypted RAID volume.English
- How to Back Up Thecus NAS with Mac OS X Time Machine
Access your Thecus NAS using Time Machine to back up your data from within Mac OS XEnglish
- How to Guide- Remote Backup
Data Guard is the powerful backup solution that Thecus provides. Remote backup solutions on the market usually are expensive and requires a complicated setup. Thecus introduces a remote backup solution that allows you to set up different backup solutions in 1 minute; and of course, it’s free and built in to ThecusOS. In particular, a “Full backup”, “Custom backup” or “iSCSI backup”, can be set to real-time or scheduled backup according to demand.English
- How to Install and Run the Dropbox Module English
- How to Install and Run the ElephantDrive Module English
- How to Mount an ISO File on Thecus NAS
Extract ISO files directly on your NAS without the use of third party software.English
- How to Transfer ADS/NT Server User Groups to Thecus NAS
Switch to Thecus NAS from Windows NT servers easily by importing your users and groups into your NAS in just a few steps.English
- How to Use RAID Volume Replication
Create another copy of your RAID partition on another disk or disks within a single NAS. These disks can then be removed and used as a backup or put into other NAS for duplication purposes. As a backup, these are useful in the event of irreparable damage to the disk, where simply replacing the damaged disks with the RAID partition copy gets you back on line without RAID rebuilding.English
- How to Use Rsync Remote Backup Module
Use the popular Rsync protocol to locally or remotely backup the data from your computer to your NAS or from your NAS to another NAS over Ethernet. Create and edit fixed, specific backup processes for regular automatic backups or manually back up when you choose.English
- How to Use the USB/eSATA Backup Module
Back up all of your data or just the folders you choose from your NAS onto an external disk through your USB or eSATA connections. Create and edit fixed, specific backup processes for regular automatic backups or manually back up when you choose.English
- How to Create an iSCSI Thin-Provision Target on Thecus NAS
iSCSI Thin-Provisioning allows you to set up to 5 flexible partitions on a single NAS. Each partition expands as its user stores more data, eliminating waste and distributing storage space as needed. When the disk is 90% full, a notification will advise you to expand your NAS's data capacity.English
- How to Install a Mini-UPS
A few simple instructions on the N4200 and N4200PRO's Mini-UPS backup power supply installation.English
- How to Stack Thecus NAS Devices
Access your NAS through a single IP address. Accessing that IP address allows you to mount folders on your computer from up to 6 stacked NAS.English
Read, write, or update information on a storage medium.
The amount of time that a system is available during those time periods when it is expected to be available. Availability is often measured as a percentage of an elapsed year. For example, 99.95% availability equates to 4.38 hours of downtime in a year (0.0005 * 365 * 24=4.38) for a system that is expected to be available all the time.
- Average Response Time (ms) - Average Time between initiation and completion of an I/O operation in milliseconds.
- Average Read Response Time (ms) - Average Time between initiation and completion of a Read operation.
- Average Write Response Time (ms) - Average Time between initiation and completion of a Write operation.
- Average Transaction Time (ms) - Average Time between initiation of a request and completion of the corresponding reply.
AVERAGE SEEK TIME
The average time it takes for the read/write head to move to a specific location. To compute the average seek time, divide the time it takes to complete a large number of random seeks by the number of seeks performed.
(noun) A collection of data stored on (usually removable) non-volatile storage media for purposes of recovery in case the original copy of data is lost or becomes inaccessible. Also called backup copy. To be useful for recovery, a backup must be made by copying the source data image when it is in a consistent state. (verb) The act of creating a backup.
The period of time available for performing a backup. Backup windows are typically defined by operational necessity. For example, if data is used from 8AM until midnight, then the window between midnight and 8AM is available for making backup copies. For consistent backups, data may not be altered while the backup is occurring, so in some cases a backup window is an interval of time during which data and applications are unavailable.
Bandwidth is the total amount of data that can be transferred at one time between CPU and storage. Generally, bandwidth refers to large block data transfers and is usually measured in MB/sec. (For instance, the total bandwidth available on any given Ultra SCSI bus is 40 MB/sec.) Actual transfer rates are somewhat less than this.
A sector or group of sectors. By default, a sector of data consists of 512 bytes.
Shortened form of binary table, a byte is a group of eight bits handled as a logical unit.
Same technology as cache memory used in servers. Storage cache usually resides on RAID controllers and boosts performance because the CPU doesn't have to wait for a disk head to spin. Data can be written to and read directly from cache.
A body of software that provides common control and management for one or more disk arrays or tape arrays. Control software presents the arrays of disks or tapes it controls to its operating environment as one or more virtual disks or tapes.
Central Processing Unit.
Total I/Os per second divided by % CPU Utilization, giving a measure in I/Os per second per CPU. Indicates how efficient the I/O subsystem is in CPU utilization.
CPU Utilization (total)
Percentage of processor time spent executing threads other than the Idle thread (in other words, time spent doing useful work). Also know as % Processor Time.
Dedicated Hot Spare
The hot spare drive which is configured to replace failed hard drive only for designated RAID within the storage device.
Preventative measures including fault tolerant systems, redundant hardware, and specialized software to ensure that businesses can operate during certain failures, and quickly recover data, hardware and communications assets.
Any storage unit presented as a single contiguous block of storage. From a hardware perspective, a disk can be a physical local drive, external SCSI attached storage, or a LUN created by a RAID controller.
A storage device attached to a computer or storage device that reads from, writes to, and stores information on a disk or hard drive.
Distributed storage is set up so that each server has its own external storage subsystem.
Percentage of processor time spent in Deferred Procedure Calls.
Contain volume manage management databases comprising information on all other dynamic disks and volumes on a system.
The automatic substitution of a functionally equivalent system component for a failed one. The term failover is most often applied to intelligent controllers connected to the same storage devices and host computers. If one of the controllers fails, failover occurs, and the survivor takes over its I/O load.
The ability to manage the file level data that resides on your storage. This encompasses direct file monitoring and the monitor and control of the space being utilized. An aspect of Storage Resource Management.
A unit of measure consisting of one billion bytes (one thousand megabytes).
Global Hot Spare
The hot spare drive which is configured to replace failed hard drive for any given RAID within the storage device.
The removal or addition of components while the system is running. For example, hard drives, power supplies, PCI cards and buses are often candidates for this term.
Hybrid Hard Drive
Hybrid drive is the next generation hard drive that combines traditional rotating magnetic hard drive with large flash memory.
Refers to data that is being sent from the CPU to any type of storage device or peripheral.
The transfer request size that specifies the number of bytes read or written in each I/O request. You can select any value from 1 byte to almost 1 Gigabyte (limited only by the amount of virtual memory available).
Specifies the percentage of read and write operations performed in each operation. You can have 100% Read, 0% Write, or vice versa or a combination of both.
Percentage of processor time spent handling hardware interrupts.
Interrupts per Second
Average number of interrupts per second, averaged over the length of the test so far. If there are multiple processors, this is the total number of interrupts for all processors.
Input/Output operations per second.Total IOPS - Average number of Input/Output operations per second.Read IOPS - Average number of read operations per second.Write IOPS - Average number of write operations per second.
Encapsulation of SCSI commands and data over TCP/IP.
iSCSI - Target
A storage device which the iSCSI volumes are created on.With iSCSI initiator utility and protocol, host server/PC is able to link to the iSCSI target and use the iSCSI volume as local hard disk.
JBOD (for "just a bunch of disks," or sometimes "just a bunch of drives") the official term is "spanning" - used to refer to a computer's hard disks that haven't been configured according to the RAID (for "redundant array of independent disks") system to increase fault tolerance and improve data access performance. The RAID system stores the same data redundantly on multiple disks that nevertheless appear to the operating system as a single disk. Although, JBOD also makes the disks appear to be a single one, it accomplishes that by combining the drives into one larger logical one. JBOD doesn't deliver any advantages over using separate disks independently and doesn't provide any of the fault tolerance or performance benefits of RAID.
Percentage of processor time spent in Privileged Mode (including the MicrosoftR Windows NTR service layer, the Executive routines, the Windows NT Kernel, and device drivers for most devices other than graphics adapters and printers).
Storage equipment combined with networking device to provide faster performance, easy installation, space saving, interoperability, and lower cost.
A copy of a set of files and directories as they were at a particular point in the past, a read-only copy of the data set frozen at a point in time.
A storage/server device that supports capacity expansion function (stackable) by iSCSI protocol or other means.
A storage device that is connected to the stack master to expand capacity on the master device via iSCSI protocol or other means.
Percentage of processor time spent in User Mode (including application and subsystem code, the graphics engine, graphics device drivers, printer device drivers, and the window manager).
Wake-on-LAN is the ability to switch on the system through special network packet. The administrator can remotely boot up the system.