Hi all...
I have tried to burn some data from the commandline with wodim (since time
ago I just used beasero...), and I have noticed this (media is CD, not DVD):
Vendor_info : 'HL-DT-ST'
Identification : 'DVDRAM GSA-H10N '
Revision : 'JL12'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Driver flags : MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Speed set to 8467 KB/s
wodim: DMA speed too slow (OK for 5x). Cannot write at speed 48x.
Starting to write CD/DVD at speed 48.0 in real TAO mode for single session.
I just can burn CDs at 5x ??
But then the program tries to write at 48x.
It the DMA message really true ?
Accodring to wodim -prcap:
Maximum read speed: 22161 kB/s (CD 125x, DVD 16x)
Current read speed: 22161 kB/s (CD 125x, DVD 16x)
Maximum write speed: 11080 kB/s (CD 62x, DVD 8x)
Current write speed: 11080 kB/s (CD 62x, DVD 8x)
Rotational control selected: CLV/PCAV
Buffer size in KB: 2048
Copy management revision supported: 1
Number of supported write speeds: 3
Write speed # 0: 11080 kB/s CLV/PCAV (CD 62x, DVD 8x)
Write speed # 1: 5540 kB/s CLV/PCAV (CD 31x, DVD 4x)
Write speed # 2: 3324 kB/s CLV/PCAV (CD 18x, DVD 2x)
Why the tests in wodim say that DMA to the drive is slow ?
Kernel is 2.6.24.4.
The drive is controlled by libata+sata_promise:
sata_promise 0000:03:04.0: version 2.11
ACPI: PCI Interrupt 0000:03:04.0[A] -> GSI 23 (level, low) -> IRQ 17
scsi6 : sata_promise
scsi7 : sata_promise
scsi8 : sata_promise
ata5: SATA max UDMA/133 mmio m4096@0xf6029000 port 0xf6029200 irq 17
ata6: SATA max UDMA/133 mmio m4096@0xf6029000 port 0xf6029280 irq 17
ata7: PATA max UDMA/133 mmio m4096@0xf6029000 port 0xf6029300 irq 17
ata5: SATA link down (SStatus 0 SControl 300)
ata6: SATA link down (SStatus 0 SControl 0)
ata7.00: ATA-6: ST3120022A, 3.06, max UDMA/100
ata7.00: 234441648 sectors, multi 0: LBA48
ata7.01: ATAPI: HL-DT-ST DVDRAM GSA-H10N, JL12, max UDMA/33
ata7.00: configured for UDMA/100
ata7.01: configured for UDMA/33
scsi 8:0:0:0: Direct-Access ATA ST3120022A 3.06 PQ: 0 ANSI: 5
sd 8:0:0:0: [sdd] 234441648 512-byte hardware sectors (120034 MB)
sd 8:0:0:0: [sdd] Write Protect is off
sd 8:0:0:0: [sdd] Mode Sense: 00 3a 00 00
sd 8:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 8:0:0:0: [sdd] 234441648 512-byte hardware sectors (120034 MB)
sd 8:0:0:0: [sdd] Write Protect is off
sd 8:0:0:0: [sdd] Mode Sense: 00 3a 00 00
sd 8:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sdd: sdd1
sd 8:0:0:0: [sdd] Attached SCSI disk
sd 8:0:0:0: Attached scsi generic sg3 type 0
scsi 8:0:1:0: CD-ROM HL-DT-ST DVDRAM GSA-H10N JL12 PQ: 0 ANSI: 5
sr0: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw xa/form2 cdda tray
UDMA/33 on the burner should be ok for 48x (150x48 = 7.2 MB/s) ?
Or just 16x, as I read elsewhere ?
TIA
--
J.A. Magallon <jamagallon()ono!com> \ Software is like sex:
\ It's better when it's free
Mandriva Linux release 2008.1 (Cooker) for i586
Linux 2.6.23-jam05 (gcc 4.2.2 20071128 (4.2.2-2mdv2008.1)) SMP PREEMPT
J.A. Magall?n wrote:
> Hi all...
>
> I have tried to burn some data from the commandline with wodim (since time
> ago I just used beasero...), and I have noticed this (media is CD, not DVD):
>
> Vendor_info : 'HL-DT-ST'
> Identification : 'DVDRAM GSA-H10N '
> Revision : 'JL12'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW.
> Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
> Driver flags : MMC-3 SWABAUDIO BURNFREE
> Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
> Speed set to 8467 KB/s
> wodim: DMA speed too slow (OK for 5x). Cannot write at speed 48x.
> Starting to write CD/DVD at speed 48.0 in real TAO mode for single session.
>
> I just can burn CDs at 5x ??
> But then the program tries to write at 48x.
> It the DMA message really true ?
No, UDMA33 should be more than fast enough. My guess is that wodim is
determining the DMA speed using some unreliable mechanism.