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Имеется следующая проблема.
Приобрел серверок Supermicro 6015V-MT.
В материнку встроен SATA RAID контроллер, который может работать в эмуляции Intel или Adaptec (HostRAID-ESB2).

Система ставится на ура! RAID виден в любой эмуляции. Без проблем... Но...
Очень маленькая скорость при копировании файлов (особенно маленького размера).

Дрова на официальном сайте Intel только под RHEL и SUSE. Да и я думаю, что дело не в дровах. Ведь RAID виден.
Может кто предложит какие варианты?

Из dmesg
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SCSI subsystem initialized
libata version 2.21 loaded.
ahci 0000:00:1f.2: version 2.3
ACPI: PCI Interrupt 0000:00:1f.2[b] -> GSI 19 (level, low) -> IRQ 19
input: ImPS/2 Generic Wheel Mouse as /class/input/input2
ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 6 ports ? Gbps 0x3f impl RAID mode
ahci 0000:00:1f.2: flags: 64bit led
PCI: Setting latency timer of device 0000:00:1f.2 to 64
scsi0 : ahci
scsi1 : ahci
scsi2 : ahci
scsi3 : ahci
scsi4 : ahci
scsi5 : ahci
ata1: SATA max UDMA/133 cmd 0xffffc20001456500 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 19
ata2: SATA max UDMA/133 cmd 0xffffc20001456580 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 19
ata3: SATA max UDMA/133 cmd 0xffffc20001456600 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 19
ata4: SATA max UDMA/133 cmd 0xffffc20001456680 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 19
ata5: SATA max UDMA/133 cmd 0xffffc20001456700 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 19
ata6: SATA max UDMA/133 cmd 0xffffc20001456780 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 19
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: ATA-8: WDC WD3202ABYS-01B7A0, 02.03B02, max UDMA/133
ata1.00: 625142448 sectors, multi 0: LBA48 NCQ (depth 0/32)
ata1.00: configured for UDMA/133
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: ATA-8: WDC WD3202ABYS-01B7A0, 02.03B02, max UDMA/133
ata2.00: 625142448 sectors, multi 0: LBA48 NCQ (depth 0/32)
ata2.00: configured for UDMA/133
ata3: SATA link down (SStatus 0 SControl 300)
ata4: SATA link down (SStatus 0 SControl 300)
ata5: SATA link down (SStatus 0 SControl 300)
ata6: SATA link down (SStatus 0 SControl 300)
scsi 0:0:0:0: Direct-Access     ATA      WDC WD3202ABYS-0 02.0 PQ: 0 ANSI: 5
sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1 sda2
sd 0:0:0:0: [sda] Attached SCSI disk
scsi 1:0:0:0: Direct-Access     ATA      WDC WD3202ABYS-0 02.0 PQ: 0 ANSI: 5
sd 1:0:0:0: [sdb] 625142448 512-byte hardware sectors (320073 MB)
sd 1:0:0:0: [sdb] Write Protect is off
sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sd 1:0:0:0: [sdb] 625142448 512-byte hardware sectors (320073 MB)
sd 1:0:0:0: [sdb] Write Protect is off
sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sdb: sdb1 sdb2
sd 1:0:0:0: [sdb] Attached SCSI disk
device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
ata_piix 0000:00:1f.1: version 2.12
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18
PCI: Setting latency timer of device 0000:00:1f.1 to 64
scsi6 : ata_piix
scsi7 : ata_piix
ata7: PATA max UDMA/100 cmd 0x00000000000101f0 ctl 0x00000000000103f6 bmdma 0x0000000000011880 irq 14
ata8: PATA max UDMA/100 cmd 0x0000000000010170 ctl 0x0000000000010376 bmdma 0x0000000000011888 irq 15
ata7.01: ATAPI: DVD-ROM UJDA780, 1.50, max UDMA/33
ata7.01: configured for UDMA/33
ata8: port disabled. ignoring.
scsi 6:0:1:0: CD-ROM            MATSHITA DVD-ROM UJDA780  1.50 PQ: 0 ANSI: 5
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
SELinux:  Disabled at runtime.
SELinux:  Unregistering netfilter hooks
audit(1220433324.548:2): selinux=0 auid=4294967295
...
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Тесты hdparm:
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[root@col ~]# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads:   10014 MB in  1.99 seconds = 5021.19 MB/sec
Timing buffered disk reads:  304 MB in  3.01 seconds = 100.95 MB/sec
[root@col ~]# hdparm -tT /dev/sdb

/dev/sdb:
Timing cached reads:   9714 MB in  1.99 seconds = 4870.04 MB/sec
Timing buffered disk reads:  314 MB in  3.02 seconds = 104.06 MB/sec
[root@col ~]# hdparm -tT /dev/sg0

/dev/sg0:
lseek() failed: Illegal seek
BLKGETSIZE failed: Inappropriate ioctl for device
Timing buffered disk reads:  read() failed: Resource temporarily unavailable
BLKFLSBUF failed: Inappropriate ioctl for device
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