Re: Best way to measure disk bandwidth usage
On 11/7/07, Andrea Venturoli <[EMAIL PROTECTED]> wrote: > > Hello. > I've got a couple of servers which I'd like to keep an eye on in order > to check wether their storage subsection is providing enough throughput > or wether disk i/o is their bottleneck. > > I know how to check this wrt cpu usage, memory size, network throughput, > but I'm totally lost when it comes to disk i/o. > I can run top and press 'm': this will allow me to know which processes > are using disk the most, but not wether I'm exploiting the hardware to > the limit or just to a small fraction of what it can do. gstat, iostat, and systat -vm are the tools I use for this. --Doug ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Migrating a file system with minimal downtime
On 10/30/07, Daniel Eriksson <[EMAIL PROTECTED]> wrote: > > > I want to migrate a file system containing multiple jails from a small > drive to a large (RAID-1) array. I want to do this with minimal > downtime. > I did a migration like this, but instead of dump, I used rdist. Take an initial snapshot (live) with rdist, then when you're ready to do the final copy, the offline rdist will run much more quickly, resulting in less downtime. Replace rdist with rsync if you like. --Doug ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Windows SSH client?
On 10/24/07, Eric F Crist <[EMAIL PROTECTED]> wrote: > > Hey folks, > > I'm looking for a good, free, SSH client that has line/column numbers > at the bottom, similar to SecureCRT. Any advice is appreciated! > Free for non-commercial use: http://ssh.com/ --Doug ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Interrupt problems with 6.2 NFS Server
Hi, I have an new NFS server that is processing roughly 15mbit of NFS traffic that we recently upgraded from an older 4.10 box. It has a 3-ware raid card, and is serving NFS out a single em nic to LAN clients. The machine works great just serving NFS, but when I try to copy data from one raid volume to another for backups, the machine's NFS performance goes way down, and NFS ops start taking multiple seconds to perform. The file copy goes quite quickly, as would be expected. The console of the machine also starts to lag pretty badly, and I get the 'typing through mud' effect. I use rdist6 to do the backup. My first impression was that I was having interrupt issues, since during the backup, the em interfaces were pushing over 200k interrupts/sec (roughly 60% CPU processing interrupts). So I recompiled the kernel with polling enabled and enabled it on the NICs. The strange thing is that polling shows enabled in ifconfig, but systat -vm still shows the same amount of interrupts. I get the same performance with polling enabled. I'm looking for some guidance on why the machine bogs so much during what seems to me to be something that should barely impact machine performance at all. The old machine was 6 years old running an old intel raid5, and it handled NFS and the concurrent file copies without a sweat. My 3ware is setup as follows: a 2 disk mirror, for the system a 4 disk raid10, for /mnt/data1 a 4 disk raid10, for /mnt/data2 Copyright (c) 1992-2007 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 6.2-RELEASE-p8 #0: Thu Oct 11 10:43:22 PDT 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/MADONNA Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Genuine Intel(R) CPU @ 2.66GHz (2670.65-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0x6f4 Stepping = 4 Features=0xbfebfbff Features2=0x4e3bd,CX16,,,> AMD Features=0x20100800 AMD Features2=0x1 Cores per package: 2 real memory = 4831838208 (4608 MB) avail memory = 4125257728 (3934 MB) ACPI APIC Table: ioapic0 irqs 0-23 on motherboard ioapic1 irqs 24-47 on motherboard lapic0: Forcing LINT1 to edge trigger kbd1 at kbdmux0 ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) acpi0: on motherboard acpi0: Power Button (fixed) Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 cpu0: on acpi0 acpi_throttle0: on cpu0 acpi_button0: on acpi0 acpi_button1: on acpi0 pcib0: port 0xca2,0xca3,0xcf8-0xcff on acpi0 pci0: on pcib0 pcib1: at device 2.0 on pci0 pci1: on pcib1 pcib2: irq 16 at device 0.0 on pci1 pci2: on pcib2 pcib3: irq 16 at device 0.0 on pci2 pci3: on pcib3 pcib4: irq 17 at device 1.0 on pci2 pci4: on pcib4 pcib5: irq 18 at device 2.0 on pci2 pci5: on pcib5 em0: port 0x3020-0x303f mem 0xf882-0xf883,0xf840-0xf87f irq 18 at device 0.0 on pci5 em0: Ethernet address: 00:15:17:21:bf:30 em1: port 0x3000-0x301f mem 0xf880-0xf881,0xf800-0xf83f irq 19 at device 0.1 on pci5 em1: Ethernet address: 00:15:17:21:bf:31 pcib6: at device 0.3 on pci1 pci6: on pcib6 3ware device driver for 9000 series storage controllers, version: 3.60.02.012 twa0: <3ware 9000 series Storage Controller> port 0x2000-0x203f mem 0xfa00-0xfbff,0xf890-0xf8900fff irq 26 at device 2.0 on pci6 twa0: [GIANT-LOCKED] twa0: INFO: (0x15: 0x1300): Controller details:: Model 9550SX-12, 12 ports, Firmware FE9X 3.08.00.004, BIOS BE9X 3.08.00.002 pcib7: at device 3.0 on pci0 pci7: on pcib7 pcib8: at device 4.0 on pci0 pci8: on pcib8 pcib9: at device 5.0 on pci0 pci9: on pcib9 pcib10: at device 6.0 on pci0 pci10: on pcib10 pcib11: at device 7.0 on pci0 pci11: on pcib11 pci0: at device 8.0 (no driver attached) pcib12: irq 16 at device 28.0 on pci0 pci12: on pcib12 uhci0: port 0x4080-0x409f irq 23 at device 29.0 on pci0 uhci0: [GIANT-LOCKED] usb0: on uhci0 usb0: USB revision 1.0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered uhci1: port 0x4060-0x407f irq 22 at device 29.1 on pci0 uhci1: [GIANT-LOCKED] usb1: on uhci1 usb1: USB revision 1.0 uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered uhci2: port 0x4040-0x405f irq 23 at device 29.2 on pci0 uhci2: [GIANT-LOCKED] usb2: on uhci2 usb2: USB revision 1.0 uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub2: 2 ports with 2 removable, self powered uhci3: port 0x4020-0x403f irq 22 at device 29.3 on pci0 uhci3: [GIANT-LOCKED] usb3: on uhci3 usb3: USB revision 1.0 uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub3: 2 ports with 2 removable, self powered ehci0: mem 0xf8c00400-0xf8c007ff irq 23 at device 29.7 on pci0 ehci0: [GIA
Interrupt/speed problems with 6.2 NFS server
Hi, I have an new NFS server that is processing roughly 15mbit of NFS traffic that we recently upgraded from an older 4.10 box. It has a 3-ware raid card, and is serving NFS out a single em nic to LAN clients. The machine works great just serving NFS, but when I try to copy data from one raid volume to another for backups, the machine's NFS performance goes way down, and NFS ops start taking multiple seconds to perform. The file copy goes quite quickly, as would be expected. The console of the machine also starts to lag pretty badly, and I get the 'typing through mud' effect. I use rdist6 to do the backup. My first impression was that I was having interrupt issues, since during the backup, the em interfaces were pushing over 200k interrupts/sec (roughly 60% CPU processing interrupts). So I recompiled the kernel with polling enabled and enabled it on the NICs. The strange thing is that polling shows enabled in ifconfig, but systat -vm still shows the same amount of interrupts. I get the same performance with polling enabled. I'm looking for some guidance on why the machine bogs so much during what seems to me to be something that should barely impact machine performance at all. The old machine was 6 years old running an old intel raid5, and it handled NFS and the concurrent file copies without a sweat. My 3ware is setup as follows: a 2 disk mirror, for the system a 4 disk raid10, for /mnt/data1 a 4 disk raid10, for /mnt/data2 Copyright (c) 1992-2007 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 6.2-RELEASE-p8 #0: Thu Oct 11 10:43:22 PDT 2007 [EMAIL PROTECTED] :/usr/obj/usr/src/sys/MADONNA Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Genuine Intel(R) CPU @ 2.66GHz (2670.65-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0x6f4 Stepping = 4 Features=0xbfebfbff Features2=0x4e3bd,CX16,,,> AMD Features=0x20100800 AMD Features2=0x1 Cores per package: 2 real memory = 4831838208 (4608 MB) avail memory = 4125257728 (3934 MB) ACPI APIC Table: ioapic0 irqs 0-23 on motherboard ioapic1 irqs 24-47 on motherboard lapic0: Forcing LINT1 to edge trigger kbd1 at kbdmux0 ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) acpi0: on motherboard acpi0: Power Button (fixed) Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 cpu0: on acpi0 acpi_throttle0: on cpu0 acpi_button0: on acpi0 acpi_button1: on acpi0 pcib0: port 0xca2,0xca3,0xcf8-0xcff on acpi0 pci0: on pcib0 pcib1: at device 2.0 on pci0 pci1: on pcib1 pcib2: irq 16 at device 0.0 on pci1 pci2: on pcib2 pcib3: irq 16 at device 0.0 on pci2 pci3: on pcib3 pcib4: irq 17 at device 1.0 on pci2 pci4: on pcib4 pcib5: irq 18 at device 2.0 on pci2 pci5: on pcib5 em0: port 0x3020-0x303f mem 0xf882-0xf883,0xf840-0xf87f irq 18 at device 0.0 on pci5 em0: Ethernet address: 00:15:17:21:bf:30 em1: port 0x3000-0x301f mem 0xf880-0xf881,0xf800-0xf83f irq 19 at device 0.1 on pci5 em1: Ethernet address: 00:15:17:21:bf:31 pcib6: at device 0.3 on pci1 pci6: on pcib6 3ware device driver for 9000 series storage controllers, version: 3.60.02.012 twa0: <3ware 9000 series Storage Controller> port 0x2000-0x203f mem 0xfa00-0xfbff,0xf890-0xf8900fff irq 26 at device 2.0 on pci6 twa0: [GIANT-LOCKED] twa0: INFO: (0x15: 0x1300): Controller details:: Model 9550SX-12, 12 ports, Firmware FE9X 3.08.00.004, BIOS BE9X 3.08.00.002 pcib7: at device 3.0 on pci0 pci7: on pcib7 pcib8: at device 4.0 on pci0 pci8: on pcib8 pcib9: at device 5.0 on pci0 pci9: on pcib9 pcib10: at device 6.0 on pci0 pci10: on pcib10 pcib11: at device 7.0 on pci0 pci11: on pcib11 pci0: at device 8.0 (no driver attached) pcib12: irq 16 at device 28.0 on pci0 pci12: on pcib12 uhci0: port 0x4080-0x409f irq 23 at device 29.0 on pci0 uhci0: [GIANT-LOCKED] usb0: on uhci0 usb0: USB revision 1.0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered uhci1: port 0x4060-0x407f irq 22 at device 29.1 on pci0 uhci1: [GIANT-LOCKED] usb1: on uhci1 usb1: USB revision 1.0 uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered uhci2: port 0x4040-0x405f irq 23 at device 29.2 on pci0 uhci2: [GIANT-LOCKED] usb2: on uhci2 usb2: USB revision 1.0 uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub2: 2 ports with 2 removable, self powered uhci3: port 0x4020-0x403f irq 22 at device 29.3 on pci0 uhci3: [GIANT-LOCKED] usb3: on uhci3 usb3: USB revision 1.0 uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub3: 2 ports with 2 removable, self powered ehci0: mem 0xf8c00400-0xf8c007ff irq 23 at device 29.7 on pci0 ehci0: [GI
