skliros diskos

[Steve Stavropoulos]

On Mon, 31 Dec 2001, Pavlos Parisshs wrote:

> On Mon, 31 Dec 2001 14:08:48 +0200 DJ Art <djart at linux.gr> wrote:
>
>
> > Εγώ τώρα στις γιορτές αγόρασα έναν WD 40GB 7200 2MB cache ATA100 (από
> > το Πλαίσιο :) Μέχρι τώρα μόνο καλά λόγια έχω να πώ: ταχύτατος, αθόρυβος
> > και αξιόπιστος. Το hdparm -tT βγάζει ~94MB/sec στο buffer read test ;-)
> >
>
> [paul@/proc/ide/ide2/hde]$ cat model
> IBM-DTLA-307030
>
> [root@/home/paul]# hdparm -tT /dev/hde
>
> /dev/hde:
>  Timing buffer-cache reads:   128 MB in  0.76 seconds =168.42 MB/sec
>  Timing buffered disk reads:  64 MB in  2.13 seconds = 30.05 MB/sec
>

 As pros8esw kai egw liga data: (oles oi metrhseis eginan me to systhma
fortwmeno kanonika (load 0.00 dhladh kai panw apo 100 procs))
Me Elite P6BX-A+ motherboard (i440BX), promise UDMA 66 PCI karta
1) Me Western Digital 20Gb 7200 2Mb cache (WDC WD205BA):
/dev/hde:
 Timing buffer-cache reads:   128 MB in  1.22 seconds =104.92 MB/sec
 Timing buffered disk reads:  64 MB in  2.74 seconds = 23.36 MB/sec

2) Me QUANTUM FIREBALL EX12.7A 418Kb cache (stis 5400 nomizw)
/dev/hda:
 Timing buffer-cache reads:   128 MB in  1.24 seconds =103.23 MB/sec
 Timing buffered disk reads:  64 MB in  5.09 seconds = 12.57 MB/sec

Kai mia anafora se ena kalo systhma me scsi diskous:
HP NetServer E800 me diskous IBM 9Gb stis 10.000 strofes
(Vendor: IBM      Model: DDYS-T09170N     Rev: S96H)

/dev/sda:
 Timing buffer-cache reads:   128 MB in  0.70 seconds =182.86 MB/sec
 Timing buffered disk reads:  64 MB in  1.89 seconds = 33.86 MB/sec

Ayto pou mou ekane entypwsh edw, einai to 182.86 to opoio paremeine
sta8ero stis epanalhpseis kai einai arketa megalytero apo ta noumera pou
anafer8hkan edw parolo pou to deytero noumero den einai poly megalo.

 Kai gia na doume kai ti eixame prin merika xronia as dwsw info kai gia
ena PII 333 me i440LX:
1) QUANTUM FIREBALL ST2.1A xwris DMA (cache 81Kb)
/dev/hda:
 Timing buffer-cache reads:   128 MB in  1.88 seconds = 68.09 MB/sec
 Timing buffered disk reads:  64 MB in 16.84 seconds =  3.80 MB/sec

2) Seagate 4Gb (ST34321A) me DMA enabled (cache 128Kb)
/dev/hda:
 Timing buffer-cache reads:   128 MB in  1.73 seconds = 73.99 MB/sec
 Timing buffered disk reads:  64 MB in  6.71 seconds =  9.54 MB/sec


 Perimenw na akousw noumera kai apo esas ;-)
(poios 8a bgalei ta megalytera noumera?)