Apa itu RAID 1 (mirror)


Bismillah

Sharing.

beberapa hari yang lalu ada pekerjaan penggantian EWS/HIS DCS.
Komputer yang disuplai oleh vendor adalah Dell T3500.
Nah ketika dihidupkan ternyata komputer ini memakai sistem RAID 1 (mirror).

bukan film RAID loh.

100_3825

Dulu waktu kuliah, juare97 sempat belajar tentang RAID tetapi sekarang sudah lupa euy, samar-samar.

searching di wiki, berikut infonya.

RAID (redundant array of independent disks, originally redundant array of inexpensive disks[1][2]) is a storage technology that combines multiple disk drive components into a logical unit. Data is distributed across the drives in one of several ways called “RAID levels”, depending on what level of redundancy and performance (via parallel communication) is required.

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RAID 1

An exact copy (or mirror) of a set of data on two disks. This is useful when read performance or reliability is more important than data storage capacity. Such an array can only be as big as the smallest member disk. A classic RAID 1 mirrored pair contains two disks (see reliability geometrically) over a single disk. Since each member contains a complete copy and can be addressed independently, ordinary wear-and-tear reliability is raised by the power of the number of self-contained copies.

RAID Level 1

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ternyata RAID itu banyak tipenya. ada RAID 0, RAID 1, dll.

untuk lebih jelasnya silahkan buka link berikut:

sumber: http://en.wikipedia.org/wiki/RAID

dan

http://en.wikipedia.org/wiki/RAID_1#RAID_1

Nah jadi sekarang lebih jelas tentang RAID 1 ini.

Tapi juare97 masih penasaran kalau nanti ada harddisk yang rusak di T3500 ini apakah langsung diganti saja dan dia langsung auto copy gitu.
Nah untuk menjawab penasaran ini, nanti mau tanya ke vendornya dan langsung coba dengan harddisk kosong.

Atau mungkin ada rekan-rekan yang sudah punya pengalaman, silahkan di share yah.

terima kasih.

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