backup server bootleneck

From: Edson Noboru Yamada (eyamada_at_diveo.net.br)
Date: 05/31/05 

Date: Tue, 31 May 2005 18:10:24 -0300
To: <sunmanagers@sunmanagers.org>

Hi

I4m using a V480 as a backup server (Veritas Netbackup).

Th server has a PCI Dual Ultra3 SCSI Host Adapter (LVD) connected to
a 66 MHz PCI slot, which has two ports, and each port is connected
to two drives.

My concerns:

a) Is the PCI slot a bottleneck? What is the sustained traffic that a slot
like that support?

b) Is the SCSI host adapter a bottleneck? Again, how many MB/s can pass
through
each port?

I know that my drives have a theoretical capacity of 60 MB/s.

Thanks
_______________________________________________
sunmanagers mailing list
sunmanagers@sunmanagers.org
http://www.sunmanagers.org/mailman/listinfo/sunmanagers

Relevant Pages

  • PANIC with linux-next-2.6.26-next-20080718
    ... ACPI: ... ACPI: PM-Timer IO Port: 0x408 ... ACPI: bus type pci registered ... # Device Drivers ...
    (Linux-Kernel)
  • [PATCH]PCI Express Port Bus Driver
    ... A PCI Express Port is a logical PCI-PCI Bridge structure. ... physical device to be handled by only a single driver. ... service drivers will compete for a single PCI-PCI Bridge device. ...
    (Linux-Kernel)
  • 2.6.25.3: serial problem (minicom)
    ... a serial console, which the other reads using the minicom program. ... Allocating PCI resources starting at 10000000 ... system 00:08: iomem range 0xe8000-0xfffff could not be reserved ... SB audio device quirk - increasing port range ...
    (Linux-Kernel)
  • Re: SATA ahci Bug in 2.6.19.x
    ... ACPI: PM-Timer IO Port: 0x808 ... ACPI: Local APIC address 0xfee00000 ... Calibrating delay using timer specific routine.. ... ACPI: bus type pci registered ...
    (Linux-Kernel)
  • BUG eth : network down (module sk98lin)
    ... network connection up using port A ... irq moderation: disabled ... eth0: network connection down ... When I set back PCI latency to 64, ...
    (Linux-Kernel)