Sub, 11.02.2012.

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Intel Solid-State Drive 520
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ASUS DRW-24B5ST
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AMD Radeon HD7950
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ASUS HD 7970 DirectCU II
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AIDA64 v2.20
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Nikad slabija prodaja Atoma
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AMD Opteron 6200 serija osvaja nagrade

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RAIDSonic Stardom SR2760-2S-S2
20.02.2008.
    « Prev  : Stranica 2 od 3 :  Next »      By ::  Dean Narandžić 
- Montaža i test -
Iako je testirani model u klasičnoj sivo-bijeloj izvedbi, dobavljiv je i u crnoj boji. Ugradnja diskova je iznimno jednostavna (disk se vijcima pričvrsti za ladicu i jednostavno utisne u utor, te fiksira mehaničkim osiguračem), a za rad ne treba niti upravljačke programe. Podešavanje se svodi na odabir RAID polja pomoću prekidača na stražnjoj strani, a signalizacija je izvedena pomocu plavo ljubicastih LE dioda (signalizacija je objašnjena na naljepnici na samom uredaju). Sučelje prema računalu je SATA II brzine do 300 MB/s. Naravno, ovo ne bi bio pravi test da uređaj nismo isprobali i sa odgovarajućim diskovima. Za tu svrhu smo od Asbisa dobili par Seagate Momentus 7200.2 diska kapaciteta čak 200GB (model ST9200420ASG) koji predstavljaju sam vrh ponude 2,5" diskova po brzini i kapacitetu. Uz SATA II sucelje, brzinu vrtnje ploča od 7200 rpm, 16 MB cache memorije, te solidan kapacitet za diskove ovog formata, nemamo puno mjesta za prigovor.

Brzina rada pojedinog diska bez uređaja


Ugradnja je očekivano protekla bez problema, no kao i kod svih drugih RAID 1 sustava, prije upotrebe potrebno je sačekati da završi inicijalna sinkronizacija koja traje prilično dugo - pristup podacima je moguć i za vrijeme sinkronizacije, no višestruko je sporiji. Test smo proveli koristeći HD Tach RW v3.0.1.0, a mjerili smo brzinu čitanja i pisanja jednog od diskova bez RAIDSonic SR2760-2S-S2 uređaja, te oba diska u RAID 0, odnosno RAID 1 načinu rada. Prije svega bi pohvalili karakteristike testnih diskova koje su na tragu aktualnih 3,5" modela (average read 53,8 MB/s i average write 45,4 MB/s). Isti diskovi u RAID 1 polju prema očekivanjima ostvaruju praktički iste rezultate (average read 54,3 MB/s i average write 43,6 MB/s), ali i primjetno ubrzanje u RAID 0 polju (average read 101,8 MB/s i average write 71,6 MB/s). Vrijeme pristupa je u svim scenarijima vrlo slicno, izmedu 14 i 15 ms.

 

Brzina rada diskova u RAID 1 polju

 

Brzina rada diskova u RAID 0 polju



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